From: Dinghao Liu <dinghao....@zju.edu.cn> [ Upstream commit 98fae901c8883640202802174a4bd70a1b9118bd ]
pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn> Reviewed-by: Kieran Bingham <kieran.bingham+rene...@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/media/platform/vsp1/vsp1_drv.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index c650e45bb0ad1..dc62533cf32ce 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -562,7 +562,12 @@ int vsp1_device_get(struct vsp1_device *vsp1) int ret; ret = pm_runtime_get_sync(vsp1->dev); - return ret < 0 ? ret : 0; + if (ret < 0) { + pm_runtime_put_noidle(vsp1->dev); + return ret; + } + + return 0; } /* @@ -845,12 +850,12 @@ static int vsp1_probe(struct platform_device *pdev) /* Configure device parameters based on the version register. */ pm_runtime_enable(&pdev->dev); - ret = pm_runtime_get_sync(&pdev->dev); + ret = vsp1_device_get(vsp1); if (ret < 0) goto done; vsp1->version = vsp1_read(vsp1, VI6_IP_VERSION); - pm_runtime_put_sync(&pdev->dev); + vsp1_device_put(vsp1); for (i = 0; i < ARRAY_SIZE(vsp1_device_infos); ++i) { if ((vsp1->version & VI6_IP_VERSION_MODEL_MASK) == -- 2.25.1