AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-16 21:16:40 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

usb: gadget: udc: core: update usb_ep_queue() documentation

Browse Source 
Mention that ->complete() should never be called from within
usb_ep_queue().

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi 2018-03-26 13:14:46 +03:00 committed by Greg Kroah-Hartman
parent 53d473fc1e
commit eaa358c779
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/gadget/udc/core.c
View File

@ -238,6 +238,9 @@ EXPORT_SYMBOL_GPL(usb_ep_free_request);
* arranges to poll once per interval, and the gadget driver usually will
* have queued some data to transfer at that time.
*
* Note that @req's ->complete() callback must never be called from
* within usb_ep_queue() as that can create deadlock situations.
*
* Returns zero, or a negative error code. Endpoints that are not enabled
* report errors; errors will also be
* reported when the usb peripheral is disconnected.