diff options
| author | Jiri Pirko <jiri@nvidia.com> | 2026-02-09 16:38:05 +0100 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2026-02-23 08:26:54 +0100 |
| commit | 47322c469d4a63ac45b705ca83680671ff71c975 (patch) | |
| tree | c5059cefccbb17b2b5e15399e1561dc40afd1420 | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
dma-mapping: avoid random addr value print out on error path
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>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260209153809.250835-2-jiri@resnulli.us
| -rw-r--r-- | kernel/dma/direct.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h index f476c63b668c..e89f175e9c2d 100644 --- a/kernel/dma/direct.h +++ b/kernel/dma/direct.h @@ -85,7 +85,7 @@ static inline dma_addr_t dma_direct_map_phys(struct device *dev, if (is_swiotlb_force_bounce(dev)) { if (attrs & DMA_ATTR_MMIO) - goto err_overflow; + return DMA_MAPPING_ERROR; return swiotlb_map(dev, phys, size, dir, attrs); } |