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| author | Chen Gang <gang.chen@asianux.com> | 2013-04-01 13:04:08 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-01 12:32:43 -0700 |
| commit | 505bdbc79d20f8f2a56c02498f079bb23b0ef756 (patch) | |
| tree | 1d2fbe8bbe916bc0e78ae46124e93e8d83a1dc76 | |
| parent | 8e277d7cfae470b76eb955f6ee9aa32d111bf5ae (diff) | |
| download | olio-linux-3.10-505bdbc79d20f8f2a56c02498f079bb23b0ef756.tar.xz olio-linux-3.10-505bdbc79d20f8f2a56c02498f079bb23b0ef756.zip | |
USB: driver.c: processing failure, maching resume condition with suspend condition
when suspend, it need check 'udev->actconfig'.
so when process failure, also need check it.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/driver.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 84d2b058581..6eab440e154 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1253,10 +1253,12 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) /* If the suspend failed, resume interfaces that did get suspended */ if (status != 0) { - msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); - while (++i < n) { - intf = udev->actconfig->interface[i]; - usb_resume_interface(udev, intf, msg, 0); + if (udev->actconfig) { + msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); + while (++i < n) { + intf = udev->actconfig->interface[i]; + usb_resume_interface(udev, intf, msg, 0); + } } /* If the suspend succeeded then prevent any more URB submissions |