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Subject: media: ov2680: Clear the 'ret' variable on success
Author: Fabio Estevam <festevam@xxxxxxx>
Date: Thu Mar 28 19:44:12 2024 -0300
Since commit 63b0cd30b78e ("media: ov2680: Add bus-cfg / endpoint
property verification") even when the correct 'link-frequencies'
property is passed in the devicetree, the driver fails to probe:
ov2680 1-0036: probe with driver ov2680 failed with error -22
The reason is that the variable 'ret' may contain the -EINVAL value
from a previous assignment:
ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
&rate);
Fix the problem by clearing 'ret' on the successful path.
Tested on imx7s-warp board with the following devicetree:
port {
ov2680_to_mipi: endpoint {
remote-endpoint = <&mipi_from_sensor>;
clock-lanes = <0>;
data-lanes = <1>;
link-frequencies = /bits/ 64 <330000000>;
};
};
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 63b0cd30b78e ("media: ov2680: Add bus-cfg / endpoint property verification")
Suggested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Fabio Estevam <festevam@xxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
drivers/media/i2c/ov2680.c | 1 +
1 file changed, 1 insertion(+)
---
diff --git a/drivers/media/i2c/ov2680.c b/drivers/media/i2c/ov2680.c
index 39d321e2b7f9..3e3b7c2b492c 100644
--- a/drivers/media/i2c/ov2680.c
+++ b/drivers/media/i2c/ov2680.c
@@ -1135,6 +1135,7 @@ static int ov2680_parse_dt(struct ov2680_dev *sensor)
goto out_free_bus_cfg;
}
+ ret = 0;
out_free_bus_cfg:
v4l2_fwnode_endpoint_free(&bus_cfg);
return ret;
