usb: gadget: fix check in sync read from ep in gadgetfs

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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>

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Binyamin Sharet 2016-07-07 22:22:04 +03:00 • committed by Felipe Balbi

parent 528d28138f

commit 63196e9896

1 changed files with 1 additions and 1 deletions

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drivers/usb/gadget/legacy/inode.c

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