diff options
| author |   Thierry Reding <treding@nvidia.com> | 2018-12-20 17:35:47 +0100 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2018-12-20 17:47:55 +0100 |
| commit | 8b1cce9f5832a8eda17d37a3c49fb7dd2d650f46 (patch) | |
| tree | d73a821b8def58fd58a913bbbb297cceca343bd1 /kernel/dma | |
| parent | dma-mapping: deprecate dma_zalloc_coherent (diff) | |
| download | linux-dev-8b1cce9f5832a8eda17d37a3c49fb7dd2d650f46.tar.xz linux-dev-8b1cce9f5832a8eda17d37a3c49fb7dd2d650f46.zip | |
dma-mapping: fix inverted logic in dma_supported
The cleanup in commit 356da6d0cde3 ("dma-mapping: bypass indirect calls
for dma-direct") accidentally inverted the logic in the check for the
presence of a ->dma_supported() callback. Switch this back to the way it
was to prevent a crash on boot.
Fixes: 356da6d0cde3 ("dma-mapping: bypass indirect calls for dma-direct")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/mapping.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index fc84c81029d9..d7c34d2d1ba5 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -406,7 +406,7 @@ int dma_supported(struct device *dev, u64 mask) if (dma_is_direct(ops)) return dma_direct_supported(dev, mask); - if (ops->dma_supported) + if (!ops->dma_supported) return 1; return ops->dma_supported(dev, mask); } |