Author: hselasky
Date: Fri Nov 17 15:30:36 2017
New Revision: 325937
URL: https://svnweb.freebsd.org/changeset/base/325937
Log:
MFC r325533:
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
Modified:
stable/10/sys/ofed/include/linux/dma-mapping.h
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/ofed/include/linux/dma-mapping.h
==============================================================================
--- stable/10/sys/ofed/include/linux/dma-mapping.h Fri Nov 17 15:27:52
2017 (r325936)
+++ stable/10/sys/ofed/include/linux/dma-mapping.h Fri Nov 17 15:30:36
2017 (r325937)
@@ -126,7 +126,7 @@ 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
high = BUS_SPACE_MAXADDR_32BIT;
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