Date: Wed, 8 Nov 2017 08:37:06 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r325533 - head/sys/compat/linuxkpi/common/include/linux Message-ID: <201711080837.vA88b6V8055182@repo.freebsd.org>
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Author: hselasky Date: Wed Nov 8 08:37:05 2017 New Revision: 325533 URL: https://svnweb.freebsd.org/changeset/base/325533 Log: Make the dma_alloc_coherent() function in the LinuxKPI NULL safe with regard to the "dev" argument. Submitted by: Krishnamraju Eraparaju @ Chelsio Sponsored by: Chelsio Communications MFC after: 1 week Modified: head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h Modified: head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h Wed Nov 8 08:21:17 2017 (r325532) +++ head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h Wed Nov 8 08:37:05 2017 (r325533) @@ -127,7 +127,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dm size_t align; void *mem; - if (dev->dma_mask) + if (dev != NULL && dev->dma_mask) high = *dev->dma_mask; else if (flag & GFP_DMA32) high = BUS_SPACE_MAXADDR_32BIT;
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