From f9f6e9cb998543c2610e3ba134256666beda8036 Mon Sep 17 00:00:00 2001 From: Xiaolei Wang Date: Mon, 7 Aug 2023 17:05:35 +0800 Subject: [PATCH] media: ov5640: Fix a memory leak when ov5640_probe fails [ Upstream commit 20290feaaeb76cc719921aad275ccb18662a7c3a ] sensor->ctrls.handler is initialized in ov5640_init_controls(), so when the sensor is not connected and ov5640_sensor_resume() fails, sensor->ctrls.handler should be released, otherwise a memory leak will be detected: unreferenced object 0xc674ca80 (size 64): comm "swapper/0", pid 1, jiffies 4294938337 (age 204.880s) hex dump (first 32 bytes): 80 55 75 c6 80 54 75 c6 00 55 75 c6 80 52 75 c6 .Uu..Tu..Uu..Ru. 00 53 75 c6 00 00 00 00 00 00 00 00 00 00 00 00 .Su.......... Fixes: 85644a9b37ec ("media: ov5640: Use runtime PM") Signed-off-by: Xiaolei Wang Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/i2c/ov5640.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 1c9cda1..40532f7 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -3928,7 +3928,7 @@ static int ov5640_probe(struct i2c_client *client) ret = ov5640_sensor_resume(dev); if (ret) { dev_err(dev, "failed to power on\n"); - goto entity_cleanup; + goto free_ctrls; } pm_runtime_set_active(dev); @@ -3953,8 +3953,9 @@ static int ov5640_probe(struct i2c_client *client) err_pm_runtime: pm_runtime_put_noidle(dev); pm_runtime_disable(dev); - v4l2_ctrl_handler_free(&sensor->ctrls.handler); ov5640_sensor_suspend(dev); +free_ctrls: + v4l2_ctrl_handler_free(&sensor->ctrls.handler); entity_cleanup: media_entity_cleanup(&sensor->sd.entity); mutex_destroy(&sensor->lock); -- 2.7.4