Messages in this thread Patch in this message | | | From | Xiaolei Wang <> | Subject | [PATCH] media: ov5640: Fix a memory leak when ov5640_probe fails | Date | Mon, 7 Aug 2023 17:05:35 +0800 |
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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 <xiaolei.wang@windriver.com> --- 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 36b509714c8c..161706e75268 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -3923,7 +3923,7 @@ 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); @@ -3948,8 +3948,9 @@ 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); -- 2.25.1
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