From: James Hogan Date: Mon, 10 Feb 2014 21:31:56 +0000 (-0300) Subject: [media] rc-main: store_filter: pass errors to userland X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7b802ce7e8c67510389fdbbe29edd87a75df3a93;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [media] rc-main: store_filter: pass errors to userland Propagate errors returned by drivers from the s_filter callback back to userland when updating scancode filters. This allows userland to see when the filter couldn't be updated, usually because it's not a valid filter for the hardware. Previously the filter was being updated conditionally on success of s_filter, but the write always reported success back to userland. Reported-by: Antti Seppälä Signed-off-by: James Hogan Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 2ec60f8d2777..64481289c98e 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -1090,7 +1090,7 @@ static ssize_t store_filter(struct device *device, unlock: mutex_unlock(&dev->lock); - return count; + return (ret < 0) ? ret : count; } static void rc_dev_release(struct device *device)