On 01/06, Jiasheng Jiang wrote: > 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: 334dd38a3878 ("drm/v3d: Set dma_mask as well as coherent_dma_mask") > Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx> > --- > drivers/gpu/drm/v3d/v3d_drv.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c > index 99e22beea90b..bedd52195723 100644 > --- a/drivers/gpu/drm/v3d/v3d_drv.c > +++ b/drivers/gpu/drm/v3d/v3d_drv.c > @@ -232,8 +232,11 @@ static int v3d_platform_drm_probe(struct platform_device *pdev) > return ret; > > mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO); > - dma_set_mask_and_coherent(dev, > + ret = dma_set_mask_and_coherent(dev, > DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH))); > + if (ret) > + return ret; > + lgtm, thanks! Reviewed-by: Melissa Wen <mwen@xxxxxxxxxx> > v3d->va_width = 30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_VA_WIDTH); > > ident1 = V3D_READ(V3D_HUB_IDENT1); > -- > 2.25.1 >
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