Re: [PATCH 1/2] cdc-acm: do not reset notification buffer index upon urb unlinking

2018-10-04 Thread Oliver Neukum
On Sa, 2018-09-22 at 22:11 +0200, Tobias Herzog wrote: > Resetting the write index of the notification buffer on urb unlink (e.g. > closing a cdc-acm device from userspace) may lead to wrong interpretation > of further received notifications, in case the index is not 0 when urb > unlink happens (i.

Re: [PATCH 1/2] cdc-acm: do not reset notification buffer index upon urb unlinking

2018-10-04 Thread Oliver Neukum
On Sa, 2018-09-22 at 22:11 +0200, Tobias Herzog wrote: > Resetting the write index of the notification buffer on urb unlink (e.g. > closing a cdc-acm device from userspace) may lead to wrong interpretation > of further received notifications, in case the index is not 0 when urb > unlink happens (i.

[PATCH 1/2] cdc-acm: do not reset notification buffer index upon urb unlinking

2018-09-22 Thread Tobias Herzog
Resetting the write index of the notification buffer on urb unlink (e.g. closing a cdc-acm device from userspace) may lead to wrong interpretation of further received notifications, in case the index is not 0 when urb unlink happens (i.e. when parts of a notification already have been transferred).