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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2015-12-30 07:59:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-25 08:06:21 +0300 |
| commit | 19454462acb1bdef80542061bdc9b410e4ed1ff6 (patch) | |
| tree | 8020236445dcbfe2f75ffe32df70f54d8067da0c /drivers/usb/class/cdc-acm.h | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-19454462acb1bdef80542061bdc9b410e4ed1ff6.tar.xz | |
usb: cdc-acm: handle unlinked urb in acm read callback
In current acm driver, the bulk-in callback function ignores the
URBs unlinked in usb core.
This causes unexpected data loss in some cases. For example,
runtime suspend entry will unlinked all urbs and set urb->status
to -ENOENT even those urbs might have data not processed yet.
Hence, data loss occurs.
This patch lets bulk-in callback function handle unlinked urbs
to avoid data loss.
Signed-off-by: Tang Jian Qiang <jianqiang.tang@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
0 files changed, 0 insertions, 0 deletions