[PATCH] drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path

[Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>]

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@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations")
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c
index 569509c2ba27..d76dff201ea6 100644
--- a/drivers/gpu/drm/panfrost/panfrost_mmu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c
@@ -460,6 +460,7 @@ 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;
 		}
 	}
-- 
2.31.1