Messages in this thread Patch in this message |  | | From | wu000273@umn ... | Subject | [PATCH] media: vsp1: Fix a reference count leak. | Date | Sat, 13 Jun 2020 18:23:57 -0500 |
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From: Qiushi Wu <wu000273@umn.edu>
pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code, causing incorrect ref count if pm_runtime_put_noidle() is not called in error handling paths. Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails.
Fixes: 1e6af546ee66 ("[media] v4l: vsp1: Implement runtime PM support") Signed-off-by: Qiushi Wu <wu000273@umn.edu> --- drivers/media/platform/vsp1/vsp1_drv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index c650e45bb0ad..222c9e1261a0 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -846,8 +846,10 @@ static int vsp1_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(&pdev->dev); goto done; + } vsp1->version = vsp1_read(vsp1, VI6_IP_VERSION); pm_runtime_put_sync(&pdev->dev); -- 2.17.1
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