tree c0d0cbce48775859ff1800c2b0a3ca301e5eb13a
parent 9ce9f7999741f342eeffd036ab09213a2fa93040
author Dan Carpenter <dan.carpenter@oracle.com> 1487113326 +0300
committer Linus Walleij <linus.walleij@linaro.org> 1488807321 +0100

gpio: mockup: return -EFAULT if copy_from_user() fails

copy_from_user() returns the number of bytes remaining to be copied but
we want to return negative error codes on failue.

Fixes: 9202ba2397d1 ("gpio: mockup: implement event injecting over debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>