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| author | Boris Brezillon <boris.brezillon@collabora.com> | 2021-05-21 12:38:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-13 18:02:55 +0300 |
| commit | 438fc51f8bad897c26cd5494f93eabd8dfce210f (patch) | |
| tree | a8b06d334558edc816d9fe12008b0fa3aa2363e9 /drivers/gpu/drm/panfrost | |
| parent | 2bd182c6bf5af9348292290f3b5d036218812c09 (diff) | |
| download | linux-438fc51f8bad897c26cd5494f93eabd8dfce210f.tar.xz | |
drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path
commit 764a2ab9eb56e1200083e771aab16186836edf1d upstream.
Make sure all bo->base.pages entries are either NULL or pointing to a
valid page before calling drm_gem_shmem_put_pages().
Reported-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: <stable@vger.kernel.org>
Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations")
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210521093811.1018992-1-boris.brezillon@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/panfrost')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 666a5e53fe19..e961fa27702c 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -504,6 +504,7 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, if (IS_ERR(pages[i])) { mutex_unlock(&bo->base.pages_lock); ret = PTR_ERR(pages[i]); + pages[i] = NULL; goto err_pages; } } |