[PATCH] media: i2c: imx415: Fix control error handling

[Narasimharao Vadlamudi <ahmisaranrao@gmail.com>]

imx415_set_testpattern() accumulates failures from cci_write(), but drops
the value and always returns success. Return the accumulated error so V4L2
reports failures to userspace.

The VBLANK path also returned immediately when programming VMAX failed
after pm_runtime_get_if_in_use() had taken a runtime PM reference. Break
out of the switch instead so the common pm_runtime_put() path is used.

Fixes: d5df1c7f3f83 ("media: i2c: imx415: Convert to new CCI register access helpers")
Fixes: 3bcae55ab96a ("media: i2c: imx415: Add read/write control of VBLANK")
Signed-off-by: Narasimharao Vadlamudi <ahmisaranrao@gmail.com>
---
 drivers/media/i2c/imx415.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/imx415.c b/drivers/media/i2c/imx415.c
index 0b424c17e880..c3b22b238ea0 100644
--- a/drivers/media/i2c/imx415.c
+++ b/drivers/media/i2c/imx415.c
@@ -686,7 +686,7 @@ static int imx415_set_testpattern(struct imx415 *sensor, int val)
 		cci_write(sensor->regmap, IMX415_DIG_CLP_MODE, 0x01, &ret);
 		cci_write(sensor->regmap, IMX415_WRJ_OPEN, 0x01, &ret);
 	}
-	return 0;
+	return ret;
 }
 
 static int imx415_s_ctrl(struct v4l2_ctrl *ctrl)
@@ -720,7 +720,7 @@ static int imx415_s_ctrl(struct v4l2_ctrl *ctrl)
 		ret = cci_write(sensor->regmap, IMX415_VMAX,
 				format->height + ctrl->val, NULL);
 		if (ret)
-			return ret;
+			break;
 		/*
 		 * Exposure is set based on VMAX which has just changed, so
 		 * program exposure register as well
-- 
2.43.0