Staging: sep: return -EFAULT on copy_to_user errors
copy_to_user() returns the number of bytes remaining but we want to return a negative error code here. These functions are used in the ioctl handler and the error code gets returned to userspace. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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