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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 23:33:02 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 23:33:02 +0400 |
| commit | c44dead70a841d90ddc01968012f323c33217c9e (patch) | |
| tree | 85489ebe9b9a3413cd8ee197ffb40c8aa8d97e63 /drivers/usb/class/cdc-wdm.c | |
| parent | 99dff5856220a02b8711f2e8746413ea6e53ccf6 (diff) | |
| parent | d5f6db9e1aff6ccf1876224f152c0268b0c8a992 (diff) | |
| download | linux-c44dead70a841d90ddc01968012f323c33217c9e.tar.xz | |
Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits)
USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h
USB: UHCI: Support big endian GRUSBHC HC
sparc: add {read,write}*_be routines
USB: UHCI: Add support for big endian descriptors
USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
USB: UHCI: Add support for big endian mmio
usb-storage: Correct adjust_quirks to include latest flags
usb/isp1760: Fix possible unlink problems
usb/isp1760: Move function isp1760_endpoint_disable() within file.
USB: remove remaining usages of hcd->state from usbcore and fix regression
usb: musb: ux500: add configuration and build options for ux500 dma
usb: musb: ux500: add dma glue layer for ux500
usb: musb: ux500: add dma name for ux500
usb: musb: ux500: add ux500 specific code for gadget side
usb: musb: fix compile error
usb-storage: fix up the unusual_realtek device list
USB: gadget: f_audio: Fix invalid dereference of initdata
EHCI: don't rescan interrupt QHs needlessly
OHCI: fix regression caused by nVidia shutdown workaround
USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage
...
Diffstat (limited to 'drivers/usb/class/cdc-wdm.c')
| -rw-r--r-- | drivers/usb/class/cdc-wdm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index a97c018dd419..2b9ff518b509 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -542,6 +542,8 @@ static int wdm_open(struct inode *inode, struct file *file) mutex_lock(&desc->lock); if (!desc->count++) { + desc->werr = 0; + desc->rerr = 0; rv = usb_submit_urb(desc->validity, GFP_KERNEL); if (rv < 0) { desc->count--; @@ -853,6 +855,18 @@ static int wdm_pre_reset(struct usb_interface *intf) struct wdm_device *desc = usb_get_intfdata(intf); mutex_lock(&desc->lock); + kill_urbs(desc); + + /* + * we notify everybody using poll of + * an exceptional situation + * must be done before recovery lest a spontaneous + * message from the device is lost + */ + spin_lock_irq(&desc->iuspin); + desc->rerr = -EINTR; + spin_unlock_irq(&desc->iuspin); + wake_up_all(&desc->wait); return 0; } |