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-rw-r--r--drivers/usb/chipidea/debug.c2
-rw-r--r--drivers/usb/core/devices.c4
-rw-r--r--drivers/usb/core/devio.c6
-rw-r--r--drivers/usb/core/hub.c13
-rw-r--r--drivers/usb/gadget/atmel_usba_udc.c8
-rw-r--r--drivers/usb/gadget/f_mass_storage.c2
-rw-r--r--drivers/usb/gadget/printer.c2
-rw-r--r--drivers/usb/gadget/rndis.c2
-rw-r--r--drivers/usb/gadget/storage_common.c2
-rw-r--r--drivers/usb/host/ehci-omap.c6
-rw-r--r--drivers/usb/host/ehci-timer.c29
11 files changed, 44 insertions, 32 deletions
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 3bc244d2636a..a62c4a47d52c 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -222,7 +222,7 @@ static struct {
} dbg_data = {
.idx = 0,
.tty = 0,
- .lck = __RW_LOCK_UNLOCKED(lck)
+ .lck = __RW_LOCK_UNLOCKED(dbg_data.lck)
};
/**
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index e33224e23770..2a3bbdf7eb94 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -665,7 +665,7 @@ static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
{
loff_t ret;
- mutex_lock(&file->f_dentry->d_inode->i_mutex);
+ mutex_lock(&file_inode(file)->i_mutex);
switch (orig) {
case 0:
@@ -681,7 +681,7 @@ static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
ret = -EINVAL;
}
- mutex_unlock(&file->f_dentry->d_inode->i_mutex);
+ mutex_unlock(&file_inode(file)->i_mutex);
return ret;
}
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 4a863fdbdccd..8823e98989fe 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -161,7 +161,7 @@ static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
{
loff_t ret;
- mutex_lock(&file->f_dentry->d_inode->i_mutex);
+ mutex_lock(&file_inode(file)->i_mutex);
switch (orig) {
case 0:
@@ -177,7 +177,7 @@ static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
ret = -EINVAL;
}
- mutex_unlock(&file->f_dentry->d_inode->i_mutex);
+ mutex_unlock(&file_inode(file)->i_mutex);
return ret;
}
@@ -1971,7 +1971,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
void __user *p)
{
struct dev_state *ps = file->private_data;
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct usb_device *dev = ps->dev;
int ret = -ENOTTY;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 1775ad471edd..5480352f984d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5177,6 +5177,7 @@ int usb_reset_device(struct usb_device *udev)
{
int ret;
int i;
+ unsigned int noio_flag;
struct usb_host_config *config = udev->actconfig;
if (udev->state == USB_STATE_NOTATTACHED ||
@@ -5186,6 +5187,17 @@ int usb_reset_device(struct usb_device *udev)
return -EINVAL;
}
+ /*
+ * Don't allocate memory with GFP_KERNEL in current
+ * context to avoid possible deadlock if usb mass
+ * storage interface or usbnet interface(iSCSI case)
+ * is included in current configuration. The easist
+ * approach is to do it for every device reset,
+ * because the device 'memalloc_noio' flag may have
+ * not been set before reseting the usb device.
+ */
+ noio_flag = memalloc_noio_save();
+
/* Prevent autosuspend during the reset */
usb_autoresume_device(udev);
@@ -5230,6 +5242,7 @@ int usb_reset_device(struct usb_device *udev)
}
usb_autosuspend_device(udev);
+ memalloc_noio_restore(noio_flag);
return ret;
}
EXPORT_SYMBOL_GPL(usb_reset_device);
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index bc19496bcec0..b66130c97269 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -93,7 +93,7 @@ static ssize_t queue_dbg_read(struct file *file, char __user *buf,
if (!access_ok(VERIFY_WRITE, buf, nbytes))
return -EFAULT;
- mutex_lock(&file->f_dentry->d_inode->i_mutex);
+ mutex_lock(&file_inode(file)->i_mutex);
list_for_each_entry_safe(req, tmp_req, queue, queue) {
len = snprintf(tmpbuf, sizeof(tmpbuf),
"%8p %08x %c%c%c %5d %c%c%c\n",
@@ -120,7 +120,7 @@ static ssize_t queue_dbg_read(struct file *file, char __user *buf,
nbytes -= len;
buf += len;
}
- mutex_unlock(&file->f_dentry->d_inode->i_mutex);
+ mutex_unlock(&file_inode(file)->i_mutex);
return actual;
}
@@ -168,13 +168,13 @@ out:
static ssize_t regs_dbg_read(struct file *file, char __user *buf,
size_t nbytes, loff_t *ppos)
{
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file_inode(file);
int ret;
mutex_lock(&inode->i_mutex);
ret = simple_read_from_buffer(buf, nbytes, ppos,
file->private_data,
- file->f_dentry->d_inode->i_size);
+ file_inode(file)->i_size);
mutex_unlock(&inode->i_mutex);
return ret;
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index fc5c16ca5e0a..97666e8b1b95 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -978,7 +978,7 @@ static int do_synchronize_cache(struct fsg_common *common)
static void invalidate_sub(struct fsg_lun *curlun)
{
struct file *filp = curlun->filp;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
unsigned long rc;
rc = invalidate_mapping_pages(inode->i_mapping, 0, -1);
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 35bcc83d1e04..bf7a56b6d48a 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -688,7 +688,7 @@ static int
printer_fsync(struct file *fd, loff_t start, loff_t end, int datasync)
{
struct printer_dev *dev = fd->private_data;
- struct inode *inode = fd->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(fd);
unsigned long flags;
int tx_list_empty;
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index e4192b887de9..d9297eebbf73 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -1065,7 +1065,7 @@ static int rndis_proc_show(struct seq_file *m, void *v)
static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
- rndis_params *p = PDE(file->f_path.dentry->d_inode)->data;
+ rndis_params *p = PDE(file_inode(file))->data;
u32 speed = 0;
int i, fl_speed = 0;
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 4ecbf8496f48..dbce3a9074e6 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -440,7 +440,7 @@ static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
if (!(filp->f_mode & FMODE_WRITE))
ro = 1;
- inode = filp->f_path.dentry->d_inode;
+ inode = file_inode(filp);
if ((!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))) {
LINFO(curlun, "invalid file type: %s\n", filename);
goto out;
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 99899e808c6a..0555ee42d7cb 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -107,7 +107,7 @@ static int omap_ehci_init(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int rc;
- struct ehci_hcd_omap_platform_data *pdata;
+ struct usbhs_omap_platform_data *pdata;
pdata = hcd->self.controller->platform_data;
@@ -151,7 +151,7 @@ static int omap_ehci_init(struct usb_hcd *hcd)
}
static void disable_put_regulator(
- struct ehci_hcd_omap_platform_data *pdata)
+ struct usbhs_omap_platform_data *pdata)
{
int i;
@@ -176,7 +176,7 @@ static void disable_put_regulator(
static int ehci_hcd_omap_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;
+ struct usbhs_omap_platform_data *pdata = dev->platform_data;
struct resource *res;
struct usb_hcd *hcd;
void __iomem *regs;
diff --git a/drivers/usb/host/ehci-timer.c b/drivers/usb/host/ehci-timer.c
index f904071d70df..20dbdcbe9b0f 100644
--- a/drivers/usb/host/ehci-timer.c
+++ b/drivers/usb/host/ehci-timer.c
@@ -113,15 +113,14 @@ static void ehci_poll_ASS(struct ehci_hcd *ehci)
if (want != actual) {
- /* Poll again later */
- ehci_enable_event(ehci, EHCI_HRTIMER_POLL_ASS, true);
- ++ehci->ASS_poll_count;
- return;
+ /* Poll again later, but give up after about 20 ms */
+ if (ehci->ASS_poll_count++ < 20) {
+ ehci_enable_event(ehci, EHCI_HRTIMER_POLL_ASS, true);
+ return;
+ }
+ ehci_dbg(ehci, "Waited too long for the async schedule status (%x/%x), giving up\n",
+ want, actual);
}
-
- if (ehci->ASS_poll_count > 20)
- ehci_dbg(ehci, "ASS poll count reached %d\n",
- ehci->ASS_poll_count);
ehci->ASS_poll_count = 0;
/* The status is up-to-date; restart or stop the schedule as needed */
@@ -160,14 +159,14 @@ static void ehci_poll_PSS(struct ehci_hcd *ehci)
if (want != actual) {
- /* Poll again later */
- ehci_enable_event(ehci, EHCI_HRTIMER_POLL_PSS, true);
- return;
+ /* Poll again later, but give up after about 20 ms */
+ if (ehci->PSS_poll_count++ < 20) {
+ ehci_enable_event(ehci, EHCI_HRTIMER_POLL_PSS, true);
+ return;
+ }
+ ehci_dbg(ehci, "Waited too long for the periodic schedule status (%x/%x), giving up\n",
+ want, actual);
}
-
- if (ehci->PSS_poll_count > 20)
- ehci_dbg(ehci, "PSS poll count reached %d\n",
- ehci->PSS_poll_count);
ehci->PSS_poll_count = 0;
/* The status is up-to-date; restart or stop the schedule as needed */