| Message ID | 20240429023833.1869154-1-nichen@iscas.ac.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/exynos: Add check for dma_set_max_seg_size | expand |
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dma.c b/drivers/gpu/drm/exynos/exynos_drm_dma.c index e2c7373f20c6..0f942186f3ff 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dma.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dma.c @@ -51,7 +51,10 @@ static int drm_iommu_attach_device(struct drm_device *drm_dev, return -EINVAL; } - dma_set_max_seg_size(subdrv_dev, DMA_BIT_MASK(32)); + ret = dma_set_max_seg_size(subdrv_dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + if (IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)) { /* * Keep the original DMA mapping of the sub-device and
Add check for the return value of dma_set_max_seg_size() and return the error if it fails in order to catch the error. Fixes: ddfd4ab6bb08 ("drm/exynos: Fix dma_parms allocation") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> --- drivers/gpu/drm/exynos/exynos_drm_dma.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)