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[media] rc-main: store_filter: pass errors to userland

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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 <a.seppala@gmail.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
James Hogan 2014-02-10 18:31:56 -03:00 committed by Mauro Carvalho Chehab
parent f61e2268a0
commit 7b802ce7e8
1 changed files with 1 additions and 1 deletions
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2
drivers/media/rc/rc-main.c
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@ -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)