diff options
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/Makefile | 2 | ||||
| -rw-r--r-- | drivers/usb/core/buffer.c | 12 | ||||
| -rw-r--r-- | drivers/usb/core/devices.c | 4 | ||||
| -rw-r--r-- | drivers/usb/core/driver.c | 21 | ||||
| -rw-r--r-- | drivers/usb/core/file.c | 9 | ||||
| -rw-r--r-- | drivers/usb/core/hcd.c | 82 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 11 | ||||
| -rw-r--r-- | drivers/usb/core/of.c | 23 | ||||
| -rw-r--r-- | drivers/usb/core/usb.c | 152 |
9 files changed, 259 insertions, 57 deletions
diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index b99b871c4b9d..250ec1d662d9 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile @@ -8,7 +8,7 @@ usbcore-y += devio.o notify.o generic.o quirks.o devices.o usbcore-y += port.o usbcore-$(CONFIG_OF) += of.o -usbcore-$(CONFIG_PCI) += hcd-pci.o +usbcore-$(CONFIG_USB_PCI) += hcd-pci.o usbcore-$(CONFIG_ACPI) += usb-acpi.o obj-$(CONFIG_USB) += usbcore.o diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index b9bf6e2eb6fe..b64568cf572c 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -66,7 +66,7 @@ int hcd_buffer_create(struct usb_hcd *hcd) int i, size; if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!hcd->self.controller->dma_mask && + (!is_device_dma_capable(hcd->self.sysdev) && !(hcd->driver->flags & HCD_LOCAL_MEM))) return 0; @@ -75,7 +75,7 @@ int hcd_buffer_create(struct usb_hcd *hcd) if (!size) continue; snprintf(name, sizeof(name), "buffer-%d", size); - hcd->pool[i] = dma_pool_create(name, hcd->self.controller, + hcd->pool[i] = dma_pool_create(name, hcd->self.sysdev, size, size, 0); if (!hcd->pool[i]) { hcd_buffer_destroy(hcd); @@ -130,7 +130,7 @@ void *hcd_buffer_alloc( /* some USB hosts just use PIO */ if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!bus->controller->dma_mask && + (!is_device_dma_capable(bus->sysdev) && !(hcd->driver->flags & HCD_LOCAL_MEM))) { *dma = ~(dma_addr_t) 0; return kmalloc(size, mem_flags); @@ -140,7 +140,7 @@ void *hcd_buffer_alloc( if (size <= pool_max[i]) return dma_pool_alloc(hcd->pool[i], mem_flags, dma); } - return dma_alloc_coherent(hcd->self.controller, size, dma, mem_flags); + return dma_alloc_coherent(hcd->self.sysdev, size, dma, mem_flags); } void hcd_buffer_free( @@ -157,7 +157,7 @@ void hcd_buffer_free( return; if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!bus->controller->dma_mask && + (!is_device_dma_capable(bus->sysdev) && !(hcd->driver->flags & HCD_LOCAL_MEM))) { kfree(addr); return; @@ -169,5 +169,5 @@ void hcd_buffer_free( return; } } - dma_free_coherent(hcd->self.controller, size, addr, dma); + dma_free_coherent(hcd->self.sysdev, size, addr, dma); } diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index f2987ddb1cde..55dea2e7828f 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -24,7 +24,7 @@ * <mountpoint>/devices contains USB topology, device, config, class, * interface, & endpoint data. * - * I considered using /proc/bus/usb/devices/device# for each device + * I considered using /dev/bus/usb/device# for each device * as it is attached or detached, but I didn't like this for some * reason -- maybe it's just too deep of a directory structure. * I also don't like looking in multiple places to gather and view @@ -40,7 +40,7 @@ * Converted the whole proc stuff to real * read methods. Now not the whole device list needs to fit * into one page, only the device list for one bus. - * Added a poll method to /proc/bus/usb/devices, to wake + * Added a poll method to /sys/kernel/debug/usb/devices, to wake * up an eventual usbd * 2000-01-04: Thomas Sailer <sailer@ife.ee.ethz.ch> * Turned into its own filesystem diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index cdee5130638b..eb87a259d55c 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1331,6 +1331,24 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) */ if (udev->parent && !PMSG_IS_AUTO(msg)) status = 0; + + /* + * If the device is inaccessible, don't try to resume + * suspended interfaces and just return the error. + */ + if (status && status != -EBUSY) { + int err; + u16 devstat; + + err = usb_get_status(udev, USB_RECIP_DEVICE, 0, + &devstat); + if (err) { + dev_err(&udev->dev, + "Failed to suspend device, error %d\n", + status); + goto done; + } + } } /* If the suspend failed, resume interfaces that did get suspended */ @@ -1763,6 +1781,9 @@ static int autosuspend_check(struct usb_device *udev) int w, i; struct usb_interface *intf; + if (udev->state == USB_STATE_NOTATTACHED) + return -ENODEV; + /* Fail if autosuspend is disabled, or any interfaces are in use, or * any interface drivers require remote wakeup but it isn't available. */ diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index e26bd5e773ad..87ad6b6bfee8 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -29,6 +29,7 @@ #define MAX_USB_MINORS 256 static const struct file_operations *usb_minors[MAX_USB_MINORS]; static DECLARE_RWSEM(minor_rwsem); +static DEFINE_MUTEX(init_usb_class_mutex); static int usb_open(struct inode *inode, struct file *file) { @@ -111,8 +112,9 @@ static void release_usb_class(struct kref *kref) static void destroy_usb_class(void) { - if (usb_class) - kref_put(&usb_class->kref, release_usb_class); + mutex_lock(&init_usb_class_mutex); + kref_put(&usb_class->kref, release_usb_class); + mutex_unlock(&init_usb_class_mutex); } int usb_major_init(void) @@ -173,7 +175,10 @@ int usb_register_dev(struct usb_interface *intf, if (intf->minor >= 0) return -EADDRINUSE; + mutex_lock(&init_usb_class_mutex); retval = init_usb_class(); + mutex_unlock(&init_usb_class_mutex); + if (retval) return retval; diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 79bdca5cb9c7..49550790a3cb 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1076,6 +1076,7 @@ static void usb_deregister_bus (struct usb_bus *bus) static int register_root_hub(struct usb_hcd *hcd) { struct device *parent_dev = hcd->self.controller; + struct device *sysdev = hcd->self.sysdev; struct usb_device *usb_dev = hcd->self.root_hub; const int devnum = 1; int retval; @@ -1122,7 +1123,7 @@ static int register_root_hub(struct usb_hcd *hcd) /* Did the HC die before the root hub was registered? */ if (HCD_DEAD(hcd)) usb_hc_died (hcd); /* This time clean up */ - usb_dev->dev.of_node = parent_dev->of_node; + usb_dev->dev.of_node = sysdev->of_node; } mutex_unlock(&usb_bus_idr_lock); @@ -1435,7 +1436,7 @@ void usb_hcd_unmap_urb_setup_for_dma(struct usb_hcd *hcd, struct urb *urb) { if (IS_ENABLED(CONFIG_HAS_DMA) && (urb->transfer_flags & URB_SETUP_MAP_SINGLE)) - dma_unmap_single(hcd->self.controller, + dma_unmap_single(hcd->self.sysdev, urb->setup_dma, sizeof(struct usb_ctrlrequest), DMA_TO_DEVICE); @@ -1468,19 +1469,19 @@ void usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; if (IS_ENABLED(CONFIG_HAS_DMA) && (urb->transfer_flags & URB_DMA_MAP_SG)) - dma_unmap_sg(hcd->self.controller, + dma_unmap_sg(hcd->self.sysdev, urb->sg, urb->num_sgs, dir); else if (IS_ENABLED(CONFIG_HAS_DMA) && (urb->transfer_flags & URB_DMA_MAP_PAGE)) - dma_unmap_page(hcd->self.controller, + dma_unmap_page(hcd->self.sysdev, urb->transfer_dma, urb->transfer_buffer_length, dir); else if (IS_ENABLED(CONFIG_HAS_DMA) && (urb->transfer_flags & URB_DMA_MAP_SINGLE)) - dma_unmap_single(hcd->self.controller, + dma_unmap_single(hcd->self.sysdev, urb->transfer_dma, urb->transfer_buffer_length, dir); @@ -1523,11 +1524,11 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, return ret; if (IS_ENABLED(CONFIG_HAS_DMA) && hcd->self.uses_dma) { urb->setup_dma = dma_map_single( - hcd->self.controller, + hcd->self.sysdev, urb->setup_packet, sizeof(struct usb_ctrlrequest), DMA_TO_DEVICE); - if (dma_mapping_error(hcd->self.controller, + if (dma_mapping_error(hcd->self.sysdev, urb->setup_dma)) return -EAGAIN; urb->transfer_flags |= URB_SETUP_MAP_SINGLE; @@ -1558,7 +1559,7 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, } n = dma_map_sg( - hcd->self.controller, + hcd->self.sysdev, urb->sg, urb->num_sgs, dir); @@ -1573,12 +1574,12 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, } else if (urb->sg) { struct scatterlist *sg = urb->sg; urb->transfer_dma = dma_map_page( - hcd->self.controller, + hcd->self.sysdev, sg_page(sg), sg->offset, urb->transfer_buffer_length, dir); - if (dma_mapping_error(hcd->self.controller, + if (dma_mapping_error(hcd->self.sysdev, urb->transfer_dma)) ret = -EAGAIN; else @@ -1588,11 +1589,11 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, ret = -EAGAIN; } else { urb->transfer_dma = dma_map_single( - hcd->self.controller, + hcd->self.sysdev, urb->transfer_buffer, urb->transfer_buffer_length, dir); - if (dma_mapping_error(hcd->self.controller, + if (dma_mapping_error(hcd->self.sysdev, urb->transfer_dma)) ret = -EAGAIN; else @@ -2498,24 +2499,8 @@ static void init_giveback_urb_bh(struct giveback_urb_bh *bh) tasklet_init(&bh->bh, usb_giveback_urb_bh, (unsigned long)bh); } -/** - * usb_create_shared_hcd - create and initialize an HCD structure - * @driver: HC driver that will use this hcd - * @dev: device for this HC, stored in hcd->self.controller - * @bus_name: value to store in hcd->self.bus_name - * @primary_hcd: a pointer to the usb_hcd structure that is sharing the - * PCI device. Only allocate certain resources for the primary HCD - * Context: !in_interrupt() - * - * Allocate a struct usb_hcd, with extra space at the end for the - * HC driver's private data. Initialize the generic members of the - * hcd structure. - * - * Return: On success, a pointer to the created and initialized HCD structure. - * On failure (e.g. if memory is unavailable), %NULL. - */ -struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, - struct device *dev, const char *bus_name, +struct usb_hcd *__usb_create_hcd(const struct hc_driver *driver, + struct device *sysdev, struct device *dev, const char *bus_name, struct usb_hcd *primary_hcd) { struct usb_hcd *hcd; @@ -2556,8 +2541,9 @@ struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, usb_bus_init(&hcd->self); hcd->self.controller = dev; + hcd->self.sysdev = sysdev; hcd->self.bus_name = bus_name; - hcd->self.uses_dma = (dev->dma_mask != NULL); + hcd->self.uses_dma = (sysdev->dma_mask != NULL); init_timer(&hcd->rh_timer); hcd->rh_timer.function = rh_timer_func; @@ -2572,6 +2558,30 @@ struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, "USB Host Controller"; return hcd; } +EXPORT_SYMBOL_GPL(__usb_create_hcd); + +/** + * usb_create_shared_hcd - create and initialize an HCD structure + * @driver: HC driver that will use this hcd + * @dev: device for this HC, stored in hcd->self.controller + * @bus_name: value to store in hcd->self.bus_name + * @primary_hcd: a pointer to the usb_hcd structure that is sharing the + * PCI device. Only allocate certain resources for the primary HCD + * Context: !in_interrupt() + * + * Allocate a struct usb_hcd, with extra space at the end for the + * HC driver's private data. Initialize the generic members of the + * hcd structure. + * + * Return: On success, a pointer to the created and initialized HCD structure. + * On failure (e.g. if memory is unavailable), %NULL. + */ +struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, + struct device *dev, const char *bus_name, + struct usb_hcd *primary_hcd) +{ + return __usb_create_hcd(driver, dev, dev, bus_name, primary_hcd); +} EXPORT_SYMBOL_GPL(usb_create_shared_hcd); /** @@ -2591,7 +2601,7 @@ EXPORT_SYMBOL_GPL(usb_create_shared_hcd); struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, struct device *dev, const char *bus_name) { - return usb_create_shared_hcd(driver, dev, bus_name, NULL); + return __usb_create_hcd(driver, dev, dev, bus_name, NULL); } EXPORT_SYMBOL_GPL(usb_create_hcd); @@ -2718,7 +2728,7 @@ int usb_add_hcd(struct usb_hcd *hcd, struct usb_device *rhdev; if (IS_ENABLED(CONFIG_USB_PHY) && !hcd->usb_phy) { - struct usb_phy *phy = usb_get_phy_dev(hcd->self.controller, 0); + struct usb_phy *phy = usb_get_phy_dev(hcd->self.sysdev, 0); if (IS_ERR(phy)) { retval = PTR_ERR(phy); @@ -2736,7 +2746,7 @@ int usb_add_hcd(struct usb_hcd *hcd, } if (IS_ENABLED(CONFIG_GENERIC_PHY) && !hcd->phy) { - struct phy *phy = phy_get(hcd->self.controller, "usb"); + struct phy *phy = phy_get(hcd->self.sysdev, "usb"); if (IS_ERR(phy)) { retval = PTR_ERR(phy); @@ -2784,7 +2794,7 @@ int usb_add_hcd(struct usb_hcd *hcd, */ retval = hcd_buffer_create(hcd); if (retval != 0) { - dev_dbg(hcd->self.controller, "pool alloc failed\n"); + dev_dbg(hcd->self.sysdev, "pool alloc failed\n"); goto err_create_buf; } @@ -2794,7 +2804,7 @@ int usb_add_hcd(struct usb_hcd *hcd, rhdev = usb_alloc_dev(NULL, &hcd->self, 0); if (rhdev == NULL) { - dev_err(hcd->self.controller, "unable to allocate root hub\n"); + dev_err(hcd->self.sysdev, "unable to allocate root hub\n"); retval = -ENOMEM; goto err_allocate_root_hub; } diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5286bf67869a..9dca59ef18b3 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1066,6 +1066,9 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) portstatus = portchange = 0; status = hub_port_status(hub, port1, &portstatus, &portchange); + if (status) + goto abort; + if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) dev_dbg(&port_dev->dev, "status %04x change %04x\n", portstatus, portchange); @@ -1198,7 +1201,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* Scan all ports that need attention */ kick_hub_wq(hub); - + abort: if (type == HUB_INIT2 || type == HUB_INIT3) { /* Allow autosuspend if it was suppressed */ disconnected: @@ -2084,6 +2087,12 @@ void usb_disconnect(struct usb_device **pdev) dev_info(&udev->dev, "USB disconnect, device number %d\n", udev->devnum); + /* + * Ensure that the pm runtime code knows that the USB device + * is in the process of being disconnected. + */ + pm_runtime_barrier(&udev->dev); + usb_lock_device(udev); hub_disconnect_children(udev); diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c index 3de4f8873984..d787f195a9a6 100644 --- a/drivers/usb/core/of.c +++ b/drivers/usb/core/of.c @@ -18,6 +18,7 @@ */ #include <linux/of.h> +#include <linux/of_platform.h> #include <linux/usb/of.h> /** @@ -46,3 +47,25 @@ struct device_node *usb_of_get_child_node(struct device_node *parent, } EXPORT_SYMBOL_GPL(usb_of_get_child_node); +/** + * usb_of_get_companion_dev - Find the companion device + * @dev: the device pointer to find a companion + * + * Find the companion device from platform bus. + * + * Return: On success, a pointer to the companion device, %NULL on failure. + */ +struct device *usb_of_get_companion_dev(struct device *dev) +{ + struct device_node *node; + struct platform_device *pdev = NULL; + + node = of_parse_phandle(dev->of_node, "companion", 0); + if (node) + pdev = of_find_device_by_node(node); + + of_node_put(node); + + return pdev ? &pdev->dev : NULL; +} +EXPORT_SYMBOL_GPL(usb_of_get_companion_dev); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index a2ccc69fb45c..28b053cacc90 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -74,6 +74,140 @@ MODULE_PARM_DESC(autosuspend, "default autosuspend delay"); #define usb_autosuspend_delay 0 #endif +static bool match_endpoint(struct usb_endpoint_descriptor *epd, + struct usb_endpoint_descriptor **bulk_in, + struct usb_endpoint_descriptor **bulk_out, + struct usb_endpoint_descriptor **int_in, + struct usb_endpoint_descriptor **int_out) +{ + switch (usb_endpoint_type(epd)) { + case USB_ENDPOINT_XFER_BULK: + if (usb_endpoint_dir_in(epd)) { + if (bulk_in && !*bulk_in) { + *bulk_in = epd; + break; + } + } else { + if (bulk_out && !*bulk_out) { + *bulk_out = epd; + break; + } + } + + return false; + case USB_ENDPOINT_XFER_INT: + if (usb_endpoint_dir_in(epd)) { + if (int_in && !*int_in) { + *int_in = epd; + break; + } + } else { + if (int_out && !*int_out) { + *int_out = epd; + break; + } + } + + return false; + default: + return false; + } + + return (!bulk_in || *bulk_in) && (!bulk_out || *bulk_out) && + (!int_in || *int_in) && (!int_out || *int_out); +} + +/** + * usb_find_common_endpoints() -- look up common endpoint descriptors + * @alt: alternate setting to search + * @bulk_in: pointer to descriptor pointer, or NULL + * @bulk_out: pointer to descriptor pointer, or NULL + * @int_in: pointer to descriptor pointer, or NULL + * @int_out: pointer to descriptor pointer, or NULL + * + * Search the alternate setting's endpoint descriptors for the first bulk-in, + * bulk-out, interrupt-in and interrupt-out endpoints and return them in the + * provided pointers (unless they are NULL). + * + * If a requested endpoint is not found, the corresponding pointer is set to + * NULL. + * + * Return: Zero if all requested descriptors were found, or -ENXIO otherwise. + */ +int usb_find_common_endpoints(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **bulk_in, + struct usb_endpoint_descriptor **bulk_out, + struct usb_endpoint_descriptor **int_in, + struct usb_endpoint_descriptor **int_out) +{ + struct usb_endpoint_descriptor *epd; + int i; + + if (bulk_in) + *bulk_in = NULL; + if (bulk_out) + *bulk_out = NULL; + if (int_in) + *int_in = NULL; + if (int_out) + *int_out = NULL; + + for (i = 0; i < alt->desc.bNumEndpoints; ++i) { + epd = &alt->endpoint[i].desc; + + if (match_endpoint(epd, bulk_in, bulk_out, int_in, int_out)) + return 0; + } + + return -ENXIO; +} +EXPORT_SYMBOL_GPL(usb_find_common_endpoints); + +/** + * usb_find_common_endpoints_reverse() -- look up common endpoint descriptors + * @alt: alternate setting to search + * @bulk_in: pointer to descriptor pointer, or NULL + * @bulk_out: pointer to descriptor pointer, or NULL + * @int_in: pointer to descriptor pointer, or NULL + * @int_out: pointer to descriptor pointer, or NULL + * + * Search the alternate setting's endpoint descriptors for the last bulk-in, + * bulk-out, interrupt-in and interrupt-out endpoints and return them in the + * provided pointers (unless they are NULL). + * + * If a requested endpoint is not found, the corresponding pointer is set to + * NULL. + * + * Return: Zero if all requested descriptors were found, or -ENXIO otherwise. + */ +int usb_find_common_endpoints_reverse(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **bulk_in, + struct usb_endpoint_descriptor **bulk_out, + struct usb_endpoint_descriptor **int_in, + struct usb_endpoint_descriptor **int_out) +{ + struct usb_endpoint_descriptor *epd; + int i; + + if (bulk_in) + *bulk_in = NULL; + if (bulk_out) + *bulk_out = NULL; + if (int_in) + *int_in = NULL; + if (int_out) + *int_out = NULL; + + for (i = alt->desc.bNumEndpoints - 1; i >= 0; --i) { + epd = &alt->endpoint[i].desc; + + if (match_endpoint(epd, bulk_in, bulk_out, int_in, int_out)) + return 0; + } + + return -ENXIO; +} +EXPORT_SYMBOL_GPL(usb_find_common_endpoints_reverse); /** * usb_find_alt_setting() - Given a configuration, find the alternate setting @@ -453,9 +587,9 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, * Note: calling dma_set_mask() on a USB device would set the * mask for the entire HCD, so don't do that. */ - dev->dev.dma_mask = bus->controller->dma_mask; - dev->dev.dma_pfn_offset = bus->controller->dma_pfn_offset; - set_dev_node(&dev->dev, dev_to_node(bus->controller)); + dev->dev.dma_mask = bus->sysdev->dma_mask; + dev->dev.dma_pfn_offset = bus->sysdev->dma_pfn_offset; + set_dev_node(&dev->dev, dev_to_node(bus->sysdev)); dev->state = USB_STATE_ATTACHED; dev->lpm_disable_count = 1; atomic_set(&dev->urbnum, 0); @@ -803,7 +937,7 @@ struct urb *usb_buffer_map(struct urb *urb) if (!urb || !urb->dev || !(bus = urb->dev->bus) - || !(controller = bus->controller)) + || !(controller = bus->sysdev)) return NULL; if (controller->dma_mask) { @@ -841,7 +975,7 @@ void usb_buffer_dmasync(struct urb *urb) || !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) || !urb->dev || !(bus = urb->dev->bus) - || !(controller = bus->controller)) + || !(controller = bus->sysdev)) return; if (controller->dma_mask) { @@ -875,7 +1009,7 @@ void usb_buffer_unmap(struct urb *urb) || !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) || !urb->dev || !(bus = urb->dev->bus) - || !(controller = bus->controller)) + || !(controller = bus->sysdev)) return; if (controller->dma_mask) { @@ -925,7 +1059,7 @@ int usb_buffer_map_sg(const struct usb_device *dev, int is_in, if (!dev || !(bus = dev->bus) - || !(controller = bus->controller) + || !(controller = bus->sysdev) || !controller->dma_mask) return -EINVAL; @@ -961,7 +1095,7 @@ void usb_buffer_dmasync_sg(const struct usb_device *dev, int is_in, if (!dev || !(bus = dev->bus) - || !(controller = bus->controller) + || !(controller = bus->sysdev) || !controller->dma_mask) return; @@ -989,7 +1123,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in, if (!dev || !(bus = dev->bus) - || !(controller = bus->controller) + || !(controller = bus->sysdev) || !controller->dma_mask) return; |