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author | Olof Johansson <olof@lixom.net> | 2014-05-06 01:18:49 +0400 |
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committer | Olof Johansson <olof@lixom.net> | 2014-05-06 01:18:49 +0400 |
commit | 186a73dc9a81b087d0708f21a990615957ec9c1c (patch) | |
tree | a1db8d517665fb27f25d44eacacd4b80a0d540ed /drivers/usb/core/message.c | |
parent | f375964d34f8f5447dbe7a3b72c071a1d3491bca (diff) | |
parent | e7062b101537a0c4f4a8d725321772eb78100074 (diff) | |
download | linux-186a73dc9a81b087d0708f21a990615957ec9c1c.tar.xz |
Merge tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next/cleanup
Merge Kconfig cleanups from Rob Herring:
Several mach kconfig clean-ups of redundant selects
* tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
ARM: qcom: clean-up unneeded kconfig selects
ARM: bcm: clean-up unneeded kconfig selects
ARM: mvebu: clean-up unneeded kconfig selects
+ Linux 3.15-rc2
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/usb/core/message.c')
-rw-r--r-- | drivers/usb/core/message.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index f829a1aad1c3..0c8a7fc4dad8 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -178,7 +178,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg); * * Return: * If successful, 0. Otherwise a negative error number. The number of actual - * bytes transferred will be stored in the @actual_length paramater. + * bytes transferred will be stored in the @actual_length parameter. */ int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout) @@ -1293,8 +1293,7 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) struct usb_interface *iface; struct usb_host_interface *alt; struct usb_hcd *hcd = bus_to_hcd(dev->bus); - int ret; - int manual = 0; + int i, ret, manual = 0; unsigned int epaddr; unsigned int pipe; @@ -1329,6 +1328,10 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) mutex_unlock(hcd->bandwidth_mutex); return -ENOMEM; } + /* Changing alt-setting also frees any allocated streams */ + for (i = 0; i < iface->cur_altsetting->desc.bNumEndpoints; i++) + iface->cur_altsetting->endpoint[i].streams = 0; + ret = usb_hcd_alloc_bandwidth(dev, NULL, iface->cur_altsetting, alt); if (ret < 0) { dev_info(&dev->dev, "Not enough bandwidth for altsetting %d\n", @@ -1920,6 +1923,7 @@ free_interfaces: usb_autosuspend_device(dev); return 0; } +EXPORT_SYMBOL_GPL(usb_set_configuration); static LIST_HEAD(set_config_list); static DEFINE_SPINLOCK(set_config_lock); |