[Linaro-mm-sig] Re: [PATCH 1/5] dma-mapping: avoid random addr value print out on error path

Thu, Feb 12, 2026 at 12:03:49PM +0100, m.szyprowski@samsung.com wrote:

On 09.02.2026 16:38, Jiri Pirko wrote:

...

From: Jiri Pirko jiri@nvidia.com

dma_addr is unitialized in dma_direct_map_phys() when swiotlb is forced and DMA_ATTR_MMIO is set which leads to random value print out in warning. Fix that by just returning DMA_MAPPING_ERROR.

Fixes: e53d29f957b3 ("dma-mapping: convert dma_direct_*map_page to be phys_addr_t based") Signed-off-by: Jiri Pirko jiri@nvidia.com

I will take this patch when v7.0-rc1 is out, as this fix definitely has to be applied regardless of the discussion about the remaining patches.

Makes sense. Thanks!