@@ -475,7 +475,7 @@ static int ov2680_power_on(struct ov2680_dev *sensor)
ret = ov2680_write_reg(sensor, OV2680_REG_SOFT_RESET, 0x01);
if (ret != 0) {
dev_err(dev, "sensor soft reset failed\n");
- return ret;
+ goto err_disable_regulators;
}
usleep_range(1000, 2000);
} else {
@@ -485,7 +485,7 @@ static int ov2680_power_on(struct ov2680_dev *sensor)
ret = clk_prepare_enable(sensor->xvclk);
if (ret < 0)
- return ret;
+ goto err_disable_regulators;
sensor->is_enabled = true;
@@ -495,6 +495,10 @@ static int ov2680_power_on(struct ov2680_dev *sensor)
ov2680_stream_disable(sensor);
return 0;
+
+err_disable_regulators:
+ regulator_bulk_disable(OV2680_NUM_SUPPLIES, sensor->supplies);
+ return ret;
}
static int ov2680_s_power(struct v4l2_subdev *sd, int on)
When the ov2680_power_on() "sensor soft reset failed" path is hit during probe() the WARN() about putting an enabled regulator at drivers/regulator/core.c:2398 triggers 3 times (once for each regulator), filling dmesg with backtraces. Fix this by properly disabling the regulators on ov2680_power_on() errors. Fixes: 3ee47cad3e69 ("media: ov2680: Add Omnivision OV2680 sensor driver") Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Acked-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/media/i2c/ov2680.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)