[PATCH] video: stm32: dsi: fix unchecked return values

[PATCH] video: stm32: dsi: fix unchecked return values

[Raphael Gallais-Pou]

Fix the following errors yielded by Coverity Scan:

CID 644836:         Error handling issues  (CHECKED_RETURN)
Calling device_chld_unbind without checking return value (as is done elsewhere 6 out of 7 times)
CID 644834:         Error handling issues  (CHECKED_RETURN)
Calling device_chld_remove without checking return value (as is done elsewhere 4 out of 5 times).

Link: https://lore.kernel.org/r/20260309212331.GF1388590@bill-the-cat/
Fixes: a6d047c0a86b ("video: stm32: remove all child of DSI bridge when its probe failed")

Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
---
 drivers/video/stm32/stm32_dsi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/video/stm32/stm32_dsi.c b/drivers/video/stm32/stm32_dsi.c
index 65a91f5cff7a..5c4d8d2aab51 100644
--- a/drivers/video/stm32/stm32_dsi.c
+++ b/drivers/video/stm32/stm32_dsi.c
@@ -493,8 +493,11 @@ static int stm32_dsi_probe(struct udevice *dev)
 	    priv->hw_version != HWVER_131) {
 		dev_err(dev, "DSI version 0x%x not supported\n", priv->hw_version);
 		dev_dbg(dev, "remove and unbind all DSI child\n");
-		device_chld_remove(dev, NULL, DM_REMOVE_NORMAL);
-		device_chld_unbind(dev, NULL);
+		ret = device_chld_remove(dev, NULL, DM_REMOVE_NORMAL);
+		if (!ret)
+			ret = device_chld_unbind(dev, NULL);
+		if (ret)
+			dev_err(dev, "Unbinding from %s failed %d\n", dev->name, ret);
 		ret = -ENODEV;
 		goto err_clk;
 	}

---
base-commit: e2fa3e570f83ab0f9ce667ddaec9dc738bcf05b9
change-id: 20260412-master-8be67866e096

Best regards,
--  
Raphael Gallais-Pou <rgallaispou@gmail.com>