On Wed, Dec 30, 2015 at 08:42:01AM +0800, Lu Baolu wrote: > 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@xxxxxxxxx> > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > Acked-by: Oliver Neukum <oneukum@xxxxxxxx> > --- > drivers/usb/class/cdc-acm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) What changed in v2? Please always document that below the --- line. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
