linux-kernel - [PATCH 18/19] media: i2c: ov4689: Refactor ov4689_s

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Message-ID: <20231211175023.1680247-19-mike.rudenko@gmail.com>
Date:   Mon, 11 Dec 2023 20:50:21 +0300
From:   Mikhail Rudenko <mike.rudenko@...il.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Jacopo Mondi <jacopo@...ndi.org>,
        Tommaso Merciai <tommaso.merciai@...rulasolutions.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Mikhail Rudenko <mike.rudenko@...il.com>
Subject: [PATCH 18/19] media: i2c: ov4689: Refactor ov4689_s_stream

Remove repetitive pm_runtime_put calls in ov4689_s_stream function,
and call pm_runtime_put once at the end of the "on" branch if any
error occurred.

Signed-off-by: Mikhail Rudenko <mike.rudenko@...il.com>
---
 drivers/media/i2c/ov4689.c | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/drivers/media/i2c/ov4689.c b/drivers/media/i2c/ov4689.c
index e21527ae0b10..034bd9077a3a 100644
--- a/drivers/media/i2c/ov4689.c
+++ b/drivers/media/i2c/ov4689.c
@@ -555,35 +555,26 @@ static int ov4689_s_stream(struct v4l2_subdev *sd, int on)
 					  ov4689_common_regs,
 					  ARRAY_SIZE(ov4689_common_regs),
 					  NULL);
-		if (ret) {
-			pm_runtime_put(dev);
-			goto unlock_and_return;
-		}
+		if (ret)
+			goto cleanup_pm;
 
 		ret = ov4689_setup_timings(ov4689, sd_state);
-		if (ret) {
-			pm_runtime_put(dev);
-			goto unlock_and_return;
-		}
+		if (ret)
+			goto cleanup_pm;
 
 		ret = ov4689_setup_blc_anchors(ov4689, sd_state);
-		if (ret) {
-			pm_runtime_put(dev);
-			goto unlock_and_return;
-		}
+		if (ret)
+			goto cleanup_pm;
 
 		ret = __v4l2_ctrl_handler_setup(&ov4689->ctrl_handler);
-		if (ret) {
-			pm_runtime_put(dev);
-			goto unlock_and_return;
-		}
+		if (ret)
+			goto cleanup_pm;
 
 		ret = cci_write(ov4689->regmap, OV4689_REG_CTRL_MODE,
 				OV4689_MODE_STREAMING, NULL);
-		if (ret) {
+cleanup_pm:
+		if (ret)
 			pm_runtime_put(dev);
-			goto unlock_and_return;
-		}
 	} else {
 		cci_write(ov4689->regmap, OV4689_REG_CTRL_MODE,
 			  OV4689_MODE_SW_STANDBY, NULL);
-- 
2.43.0