From: Dan Carpenter <error27@gmail.com>
Date: Sun, 29 May 2011 19:53:12 +0000 (+0300)
Subject: ptp: Return -EFAULT on copy_to_user() errors
X-Git-Tag: v3.0-rc3~3^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e23ef227d10878ff3f323a1dfed10205a1825b71;p=pandora-kernel.git

ptp: Return -EFAULT on copy_to_user() errors

copy_to_user() returns the number of bytes remaining, but we want a
negative error code in ptp_ioctl.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: John Stultz <john.stultz@linaro.org>
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