[PATCH 5.14 237/334] drm/exynos: g2d: fix missing unlock on error in g2d_runqueue_worker()

Greg Kroah-Hartman
2021-09-13T14:44:07Z

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit b74a29fac6de62f39b594e8f545b3a26db7edb5e ]

Add the missing unlock before return from function g2d_runqueue_worker()
in the error handling case.

Fixes: 445d3bed75de ("drm/exynos: use pm_runtime_resume_and_get()")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/exynos/exynos_drm_g2d.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index cab4d2c370a7..0ed665501ac4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -897,13 +897,14 @@ static void g2d_runqueue_worker(struct work_struct *work)
ret = pm_runtime_resume_and_get(g2d->dev);
if (ret < 0) {
dev_err(g2d->dev, "failed to enable G2D device.\n");
- return;
+ goto out;
}

g2d_dma_start(g2d, g2d->runqueue_node);
}
}

+out:
mutex_unlock(&g2d->runqueue_mutex);
}

--
2.30.2