On Sat, Dec 08, 2012 at 07:50:50AM -0500, Sasha Levin wrote:
>Commit c003ab1b ("[media] rc-core: add separate defines for protocol bitmaps
>and numbers") has introduced a bug which allows store_protocols() to return
>without releasing the device mutex it's holding.
>
>Doing that would cause infinite hangs waiting on device mutex next time
>around.
>
>Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
Acked-by: David Härdeman <david@xxxxxxxxxxx>
>---
> drivers/media/rc/rc-main.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
>index 601d1ac1..0510f4d 100644
>--- a/drivers/media/rc/rc-main.c
>+++ b/drivers/media/rc/rc-main.c
>@@ -890,7 +890,8 @@ static ssize_t store_protocols(struct device *device,
>
> if (i == ARRAY_SIZE(proto_names)) {
> IR_dprintk(1, "Unknown protocol: '%s'\n", tmp);
>- return -EINVAL;
>+ ret = -EINVAL;
>+ goto out;
> }
>
> count++;
>--
>1.8.0
>
--
David Härdeman
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