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>
---
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
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