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Subject: media: i2c: Use pm_runtime_resume_and_get()
Author:  Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Date:    Thu Sep 14 20:20:54 2023 +0300

Simplify error handling by using pm_runtime_resume_and_get() instead of
pm_runtime_get_sync() with a put call in the error path.

Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Acked-by: Benjamin Mugnier <benjamin.mugn...@foss.st.com> (st-vgxy61)
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>

 drivers/media/i2c/ccs/ccs-core.c |  6 +++---
 drivers/media/i2c/hi846.c        |  6 ++----
 drivers/media/i2c/hi847.c        |  5 ++---
 drivers/media/i2c/imx208.c       | 14 +++++++-------
 drivers/media/i2c/og01a1b.c      |  5 ++---
 drivers/media/i2c/ov5693.c       |  6 +++---
 drivers/media/i2c/ov7251.c       |  8 +++++---
 drivers/media/i2c/st-vgxy61.c    |  9 ++-------
 8 files changed, 26 insertions(+), 33 deletions(-)

---

diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 49e0d9a09530..569bf9b67539 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -1893,9 +1893,9 @@ static int ccs_pm_get_init(struct ccs_sensor *sensor)
         * relies at the returned value to detect if the device was already
         * active or not.
         */
-       rval = pm_runtime_get_sync(&client->dev);
-       if (rval < 0)
-               goto error;
+       rval = pm_runtime_resume_and_get(&client->dev);
+       if (rval)
+               return rval;
 
        /* Device was already active, so don't set controls */
        if (rval == 1)
diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c
index fa0038749a3b..8a8ae89a8453 100644
--- a/drivers/media/i2c/hi846.c
+++ b/drivers/media/i2c/hi846.c
@@ -1613,11 +1613,9 @@ static int hi846_set_stream(struct v4l2_subdev *sd, int 
enable)
        mutex_lock(&hi846->mutex);
 
        if (enable) {
-               ret = pm_runtime_get_sync(&client->dev);
-               if (ret < 0) {
-                       pm_runtime_put_noidle(&client->dev);
+               ret = pm_runtime_resume_and_get(&client->dev);
+               if (ret)
                        goto out;
-               }
 
                ret = hi846_start_streaming(hi846);
        }
diff --git a/drivers/media/i2c/hi847.c b/drivers/media/i2c/hi847.c
index 32547d7a2659..47aa2cd06e32 100644
--- a/drivers/media/i2c/hi847.c
+++ b/drivers/media/i2c/hi847.c
@@ -2623,9 +2623,8 @@ static int hi847_set_stream(struct v4l2_subdev *sd, int 
enable)
 
        mutex_lock(&hi847->mutex);
        if (enable) {
-               ret = pm_runtime_get_sync(&client->dev);
-               if (ret < 0) {
-                       pm_runtime_put_noidle(&client->dev);
+               ret = pm_runtime_resume_and_get(&client->dev);
+               if (ret) {
                        mutex_unlock(&hi847->mutex);
                        return ret;
                }
diff --git a/drivers/media/i2c/imx208.c b/drivers/media/i2c/imx208.c
index ee5a28675388..a6edcae4ef47 100644
--- a/drivers/media/i2c/imx208.c
+++ b/drivers/media/i2c/imx208.c
@@ -720,9 +720,11 @@ static int imx208_set_stream(struct v4l2_subdev *sd, int 
enable)
        }
 
        if (enable) {
-               ret = pm_runtime_get_sync(&client->dev);
-               if (ret < 0)
-                       goto err_rpm_put;
+               ret = pm_runtime_resume_and_get(&client->dev);
+               if (ret) {
+                       mutex_unlock(&imx208->imx208_mx);
+                       return ret;
+               }
 
                /*
                 * Apply default & customized values
@@ -819,11 +821,9 @@ static int imx208_read_otp(struct imx208 *imx208)
        if (imx208->otp_read)
                goto out_unlock;
 
-       ret = pm_runtime_get_sync(&client->dev);
-       if (ret < 0) {
-               pm_runtime_put_noidle(&client->dev);
+       ret = pm_runtime_resume_and_get(&client->dev);
+       if (ret)
                goto out_unlock;
-       }
 
        ret = imx208_identify_module(imx208);
        if (ret)
diff --git a/drivers/media/i2c/og01a1b.c b/drivers/media/i2c/og01a1b.c
index 365ce5684583..ccf6731ea2e2 100644
--- a/drivers/media/i2c/og01a1b.c
+++ b/drivers/media/i2c/og01a1b.c
@@ -737,9 +737,8 @@ static int og01a1b_set_stream(struct v4l2_subdev *sd, int 
enable)
 
        mutex_lock(&og01a1b->mutex);
        if (enable) {
-               ret = pm_runtime_get_sync(&client->dev);
-               if (ret < 0) {
-                       pm_runtime_put_noidle(&client->dev);
+               ret = pm_runtime_resume_and_get(&client->dev);
+               if (ret) {
                        mutex_unlock(&og01a1b->mutex);
                        return ret;
                }
diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c
index 488ee6d9d301..033cf7f14f19 100644
--- a/drivers/media/i2c/ov5693.c
+++ b/drivers/media/i2c/ov5693.c
@@ -975,9 +975,9 @@ static int ov5693_s_stream(struct v4l2_subdev *sd, int 
enable)
        int ret;
 
        if (enable) {
-               ret = pm_runtime_get_sync(ov5693->dev);
-               if (ret < 0)
-                       goto err_power_down;
+               ret = pm_runtime_resume_and_get(ov5693->dev);
+               if (ret)
+                       return ret;
 
                mutex_lock(&ov5693->lock);
                ret = __v4l2_ctrl_handler_setup(&ov5693->ctrls.handler);
diff --git a/drivers/media/i2c/ov7251.c b/drivers/media/i2c/ov7251.c
index 675fb37a6fea..6582cc0e2384 100644
--- a/drivers/media/i2c/ov7251.c
+++ b/drivers/media/i2c/ov7251.c
@@ -1340,9 +1340,11 @@ static int ov7251_s_stream(struct v4l2_subdev *subdev, 
int enable)
        mutex_lock(&ov7251->lock);
 
        if (enable) {
-               ret = pm_runtime_get_sync(ov7251->dev);
-               if (ret < 0)
-                       goto err_power_down;
+               ret = pm_runtime_resume_and_get(ov7251->dev);
+               if (ret) {
+                       mutex_unlock(&ov7251->lock);
+                       return ret;
+               }
 
                ret = ov7251_pll_configure(ov7251);
                if (ret) {
diff --git a/drivers/media/i2c/st-vgxy61.c b/drivers/media/i2c/st-vgxy61.c
index 30f82ca344c4..5dbfb04b3124 100644
--- a/drivers/media/i2c/st-vgxy61.c
+++ b/drivers/media/i2c/st-vgxy61.c
@@ -1170,14 +1170,9 @@ static int vgxy61_stream_enable(struct vgxy61_dev 
*sensor)
        if (ret)
                return ret;
 
-       ret = pm_runtime_get_sync(&client->dev);
-       if (ret < 0) {
-               pm_runtime_put_autosuspend(&client->dev);
+       ret = pm_runtime_resume_and_get(&client->dev);
+       if (ret)
                return ret;
-       }
-
-       /* pm_runtime_get_sync() can return 1 as a valid return code */
-       ret = 0;
 
        vgxy61_write_reg(sensor, VGXY61_REG_FORMAT_CTRL,
                         get_bpp_by_code(sensor->fmt.code), &ret);

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