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 <[email protected]> > Signed-off-by: Lu Baolu <[email protected]> > Cc: [email protected] > Acked-by: Oliver Neukum <[email protected]> > --- > drivers/usb/class/cdc-acm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
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