git/linux-nf
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git synced 2026-04-03 23:38:12 -04:00
Code Issues Packages Projects Releases Wiki Activity

dma-mapping: avoid random addr value print out on error path

Browse Source 
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: e53d29f957 ("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
This commit is contained in:
Jiri Pirko
2026-02-09 16:38:05 +01:00
committed by Marek Szyprowski
parent 6de23f81a5
commit 47322c469d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/dma/direct.h
View File

@@ -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);
}