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| author | Lucas Stach <l.stach@pengutronix.de> | 2021-08-20 23:18:28 +0300 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2021-09-16 11:35:29 +0300 |
| commit | f978a5302f5566480c58ffae64a16d34456801bd (patch) | |
| tree | b0740eaddd1e974530dc4a4b9acae3942c5adb34 | |
| parent | 725cbc7884c37f3b4f1777bc1aea6432cded8ca5 (diff) | |
| download | linux-f978a5302f5566480c58ffae64a16d34456801bd.tar.xz | |
drm/etnaviv: fix MMU context leak on GPU reset
After a reset the GPU is no longer using the MMU context and may be
restarted with a different context. While the mmu_state proeprly was
cleared, the context wasn't unreferenced, leading to a memory leak.
Cc: stable@vger.kernel.org # 5.4
Reported-by: Michael Walle <michael@walle.cc>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Marek Vasut <marex@denx.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 3d64bc3cc604..bc2bdfcbc082 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -571,6 +571,8 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) gpu->fe_running = false; gpu->exec_state = -1; + if (gpu->mmu_context) + etnaviv_iommu_context_put(gpu->mmu_context); gpu->mmu_context = NULL; return 0; |