| commit | f1abac982c49f35615f47ff1f94a8ca5ba962bd8 | |
| author | Bjørn Mork <bjorn@mork.no> | |
| Mon, 16 Jan 2012 14:11:57 +0000 (16 15:11 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 3 Feb 2012 17:19:02 +0000 (3 09:19 -0800) | ||
| tree | 472eaf7f2ddc13ef41d0f0baab537564daa5edb5 | treesnapshot (tar.gz zip) |
| parent | 0b4e97269313969faf20f4c341af10d734d6d00d | commitdiff |
USB: cdc-wdm: call wake_up_all to allow driver to shutdown on device removal
commit 62aaf24dc125d7c55c93e313d15611f152b030c7 upstream.
wdm_disconnect() waits for the mutex held by wdm_read() before
calling wake_up_all(). This causes a deadlock, preventing device removal
to complete. Do the wake_up_all() before we start waiting for the locks.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 62aaf24dc125d7c55c93e313d15611f152b030c7 upstream.
wdm_disconnect() waits for the mutex held by wdm_read() before
calling wake_up_all(). This causes a deadlock, preventing device removal
to complete. Do the wake_up_all() before we start waiting for the locks.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/usb/class/cdc-wdm.c | diffblobblamehistory |