Commit 698733fb authored Apr 05, 2018 by Dan Carpenter Committed by Christoph Hellwig May 07, 2018

swiotlb: remove an unecessary NULL check



Smatch complains here:

    lib/swiotlb.c:730 swiotlb_alloc_buffer()
    warn: variable dereferenced before check 'dev' (see line 716)

"dev" isn't ever NULL in this function so we can just remove the check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

parent 3d6ce86e

lib/swiotlb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -727,7 +727,7 @@ swiotlb_alloc_buffer(struct device dev, size_t size, dma_addr_t dma_handle,

		out_unmap:
		dev_warn(dev, "hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
		(unsigned long long)(dev ? dev->coherent_dma_mask : 0),
		(unsigned long long)dev->coherent_dma_mask,
		(unsigned long long)*dma_handle);

		/*