[PATCH v3 08/12] media: sun6i-isp: proc: Error out on invalid port to fix warning

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The enabled variable is only set for a valid port and used later,
which triggers an uninitialized use smatch warning. Explicitly error
out in that case to fix the warning.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
Fixes: e3185e1d7c14 ("media: staging: media: Add support for the Allwinner A31 ISP")
---
 drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c
index a95709d2c573..4f34c1bc8be9 100644
--- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c
+++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c
@@ -416,7 +416,7 @@ static int sun6i_isp_proc_notifier_bound(struct v4l2_async_notifier *notifier,
 		enabled = !proc->source_csi0.expected;
 		break;
 	default:
-		break;
+		return -EINVAL;
 	}
 
 	source->subdev = remote_subdev;
-- 
2.38.1





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