linux-kernel - [PATCH v6 16/17] media: qcom: camss: Propagate vfe

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Date:   Mon, 25 Sep 2023 16:40:58 +0100
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        hverkuil@...all.nl, laurent.pinchart@...asonboard.com,
        robert.foss@...aro.org, todor.too@...il.com, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, mchehab@...nel.org,
        sakari.ailus@...ux.intel.com, andrey.konovalov@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Subject: [PATCH v6 16/17] media: qcom: camss: Propagate vfe_reset error up the callstack

A previous patch I had removed the returns from vfe_disable() since we
didn't trap any meaningful errors. Konrad pointed out vfe_reset() could
return an error, which is true.

Trap the vfe_reset() error code and throw it up the callstack.

Suggested-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 drivers/media/platform/qcom/camss/camss-vfe.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index b3d5af7f09690..4839e2cedfe58 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -435,8 +435,11 @@ static int vfe_disable_output(struct vfe_line *line)
 int vfe_disable(struct vfe_line *line)
 {
 	struct vfe_device *vfe = to_vfe(line);
+	int ret;
 
-	vfe_disable_output(line);
+	ret = vfe_disable_output(line);
+	if (ret)
+		goto error;
 
 	vfe_put_output(line);
 
@@ -446,7 +449,8 @@ int vfe_disable(struct vfe_line *line)
 
 	mutex_unlock(&vfe->stream_lock);
 
-	return 0;
+error:
+	return ret;
 }
 
 /**
-- 
2.42.0