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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-04 19:49:15 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-04 19:49:15 +0100 |
| commit | 5613970af3f5f8372c596b138bd64f3918513515 (patch) | |
| tree | c027657c6bab40d855c9a3ac31dce2f7759c2a30 /include | |
| parent | Merge tag 'media/v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mch... (diff) | |
| parent | ioat: ioat_alloc_ring() failure handling. (diff) | |
| download | linux-5613970af3f5f8372c596b138bd64f3918513515.tar.xz linux-5613970af3f5f8372c596b138bd64f3918513515.zip | |
Merge tag 'dmaengine-fix-5.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"A bunch of fixes for:
- uninitialized dma_slave_caps access
- virt-dma use after free in vchan_complete()
- driver fixes for ioat, k3dma and jz4780"
* tag 'dmaengine-fix-5.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
ioat: ioat_alloc_ring() failure handling.
dmaengine: virt-dma: Fix access after free in vchan_complete()
dmaengine: k3dma: Avoid null pointer traversal
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
dmaengine: Fix access to uninitialized dma_slave_caps
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dmaengine.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 8fcdee1c0cf9..dad4a68fa009 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1364,8 +1364,11 @@ static inline int dma_get_slave_caps(struct dma_chan *chan, static inline int dmaengine_desc_set_reuse(struct dma_async_tx_descriptor *tx) { struct dma_slave_caps caps; + int ret; - dma_get_slave_caps(tx->chan, &caps); + ret = dma_get_slave_caps(tx->chan, &caps); + if (ret) + return ret; if (caps.descriptor_reuse) { tx->flags |= DMA_CTRL_REUSE; |