Commit 44ab30b0 authored by 蒋家盛's avatar 蒋家盛 Committed by Steven Price
Browse files

drm/panfrost: Check for error num after setting mask 



Because of the possible failure of the dma_supported(), the
dma_set_mask_and_coherent() may return error num.
Therefore, it should be better to check it and return the error if
fails.

Fixes: f3ba9122 ("drm/panfrost: Add initial panfrost driver")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
[Steve: fix Fixes: line]
Reviewed-by: default avatarSteven Price <steven.price@arm.com>
Signed-off-by: default avatarSteven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220106030326.2620942-1-jiasheng@iscas.ac.cn
parent a11d854f

drivers/gpu/drm/panfrost/panfrost_gpu.c

+4 −1
Original line number Diff line number Diff line
@@ -360,8 +360,11 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) 


	panfrost_gpu_init_features(pfdev);



	dma_set_mask_and_coherent(pfdev->dev,

	err = dma_set_mask_and_coherent(pfdev->dev,

		DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features)));

	if (err)

		return err;



	dma_set_max_seg_size(pfdev->dev, UINT_MAX);



	irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");