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| author | Inki Dae <inki.dae@samsung.com> | 2023-11-01 18:36:51 +0900 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2023-12-07 11:51:43 +0900 |
| commit | 8d1b7809684c688005706125b804e1f9792d2b1b (patch) | |
| tree | 02c6cff1a21087b7763e9a518d9fcd013f6fc86b /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 73bf1c9ae6c054c53b8e84452c5e46f86dd28246 (diff) | |
drm/exynos: fix a wrong error checking
Fix a wrong error checking in exynos_drm_dma.c module.
In the exynos_drm_register_dma function, both arm_iommu_create_mapping()
and iommu_get_domain_for_dev() functions are expected to return NULL as
an error.
However, the error checking is performed using the statement
if(IS_ERR(mapping)), which doesn't provide a suitable error value.
So check if 'mapping' is NULL, and if it is, return -ENODEV.
This issue[1] was reported by Dan.
Changelog v1:
- fix build warning.
[1] https://lore.kernel.org/all/33e52277-1349-472b-a55b-ab5c3462bfcf@moroto.mountain/
Reported-by : Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
0 files changed, 0 insertions, 0 deletions