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[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 <a.seppala@gmail.com> Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -1090,7 +1090,7 @@ static ssize_t store_filter(struct device *device,
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unlock:
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mutex_unlock(&dev->lock);
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return count;
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return (ret < 0) ? ret : count;
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}
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static void rc_dev_release(struct device *device)
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