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swiotlb: fix inversed DMA_ATTR_NO_WARN test 

The result was printing the warning only when we were explicitly asked
not to.

Cc: stable@vger.kernel.org
Fixes: 0176adb004 "swiotlb: refactor
 coherent buffer allocation"
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Michel Dänzer 2018-05-01 15:24:11 +02:00 committed by Christoph Hellwig
parent 2d618bdf71
commit 892a0be43e
1 changed files with 1 additions and 1 deletions
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2
lib/swiotlb.c
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@ -737,7 +737,7 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle,
swiotlb_tbl_unmap_single(dev, phys_addr, size, DMA_TO_DEVICE,
DMA_ATTR_SKIP_CPU_SYNC);
out_warn:
if ((attrs & DMA_ATTR_NO_WARN) && printk_ratelimit()) {
if (!(attrs & DMA_ATTR_NO_WARN) && printk_ratelimit()) {
dev_warn(dev,
"swiotlb: coherent allocation failed, size=%zu\n",
size);