Commit 4fa07711 authored Jan 10, 2012 by Dmitry Torokhov

Input: serio_raw - return proper result when serio_raw_write fails



If serio_raw_write was always returning number of bytes successfully
sent to serio port and never signalled error condition to the caller.
Change it so that for completely failed transfers appropriate error
code returned to the caller (partially successful writes still return
number of bytes transferred).

Reported-by: Che-liang Chiou <clchiou@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

parent 0c62fbf6

drivers/input/serio/serio_raw.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -224,7 +224,7 @@ static ssize_t serio_raw_write(struct file file, const char __user buffer,

		out:
		mutex_unlock(&serio_raw_mutex);
		return written;
		return written ?: retval;
		}

		static unsigned int serio_raw_poll(struct file file, poll_table wait)