diff mbox series

[1/2] drm/imagination: Fix ERR_PTR test on pointer to pointer.

Message ID 20231213144431.94956-1-donald.robson@imgtec.com (mailing list archive)
State New, archived
Headers show
Series [1/2] drm/imagination: Fix ERR_PTR test on pointer to pointer. | expand

Commit Message

Donald Robson Dec. 13, 2023, 2:44 p.m. UTC 
drivers/gpu/drm/imagination/pvr_vm.c:631 pvr_vm_create_context()
  error: 'vm_ctx->mmu_ctx' dereferencing possible ERR_PTR()

612         vm_ctx->mmu_ctx = pvr_mmu_context_create(pvr_dev);
613         err = PTR_ERR_OR_ZERO(&vm_ctx->mmu_ctx);
                                      ^
The address is never an error pointer so this will always return 0.
Remove the ampersand.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
---
 drivers/gpu/drm/imagination/pvr_vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Maxime Ripard Dec. 15, 2023, 1:13 p.m. UTC | #1 
On Wed, 13 Dec 2023 14:44:30 +0000, Donald Robson wrote:
> drivers/gpu/drm/imagination/pvr_vm.c:631 pvr_vm_create_context()
>   error: 'vm_ctx->mmu_ctx' dereferencing possible ERR_PTR()
> 
> 612         vm_ctx->mmu_ctx = pvr_mmu_context_create(pvr_dev);
> 613         err = PTR_ERR_OR_ZERO(&vm_ctx->mmu_ctx);
>                                       ^
> The address is never an error pointer so this will always return 0.
> Remove the ampersand.
> 
> [...]

Applied to drm/drm-misc (drm-misc-next-fixes).

Thanks!
Maxime
diff mbox series

Patch

diff --git a/drivers/gpu/drm/imagination/pvr_vm.c b/drivers/gpu/drm/imagination/pvr_vm.c
index 6f4e07effad2..432168aba577 100644
--- a/drivers/gpu/drm/imagination/pvr_vm.c
+++ b/drivers/gpu/drm/imagination/pvr_vm.c
@@ -610,7 +610,7 @@  pvr_vm_create_context(struct pvr_device *pvr_dev, bool is_userspace_context)
 		       0, 1ULL << device_addr_bits, 0, 0, &pvr_vm_gpuva_ops);
 
 	vm_ctx->mmu_ctx = pvr_mmu_context_create(pvr_dev);
-	err = PTR_ERR_OR_ZERO(&vm_ctx->mmu_ctx);
+	err = PTR_ERR_OR_ZERO(vm_ctx->mmu_ctx);
 	if (err) {
 		vm_ctx->mmu_ctx = NULL;
 		goto err_put_ctx;