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(parent: 528d281) | patch
usb: gadget: fix check in sync read from ep in gadgetfs
authorBinyamin Sharet <s.binyamin@gmail.com>
Thu, 7 Jul 2016 19:22:04 +0000 (22:22 +0300)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Thu, 11 Aug 2016 12:09:46 +0000 (15:09 +0300)
commit63196e989699ddffb4e3d30ca8c3567d408820f4
tree38e89f838dbf362ebad3ead74e292c5aecc2980ctree | snapshot
parent528d28138f91009f230903bd89ccd44719667831commit | diff
usb: gadget: fix check in sync read from ep in gadgetfs

When reading synchronously from a non-zero endpoint, gadgetfs will
return -EFAULT even if the read succeeds, due to a bad check of the
copy_to_iter() return value.

This fix compares the return value of copy_to_iter to the amount of
bytes that was passed, and only fails if they are not the same.

Signed-off-by: Binyamin Sharet <s.binyamin@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/legacy/inode.c diff | blob | history
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