diff options
| author | xiao jin <jin.xiao@intel.com> | 2014-05-26 19:23:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 15:04:05 -0700 |
| commit | db0904737947d509844e171c9863ecc5b4534005 (patch) | |
| tree | 903fdf8c6fec1f0fd4a6462c30dea70c9eba40e7 /Documentation/applying-patches.txt | |
| parent | 496969c64a618579f085a87310bc904eb190a71d (diff) | |
USB: usb_wwan: fix urb leak in write error path
When enable usb serial for modem data, sometimes the tty is blocked
in tty_wait_until_sent because portdata->out_busy always is set and
have no chance to be cleared.
We find a bug in write error path. usb_wwan_write set portdata->out_busy
firstly, then try autopm async with error. No out urb submit and no
usb_wwan_outdat_callback to this write, portdata->out_busy can't be
cleared.
This patch clear portdata->out_busy if usb_wwan_write try autopm async
with error.
Fixes: 383cedc3bb43 ("USB: serial: full autosuspend support for the
option driver")
Signed-off-by: xiao jin <jin.xiao@intel.com>
Signed-off-by: Zhang, Qi1 <qi1.zhang@intel.com>
Reviewed-by: David Cohen <david.a.cohen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v2.6.32
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/applying-patches.txt')
0 files changed, 0 insertions, 0 deletions