Author: loos
Date: Tue Dec 24 23:43:29 2019
New Revision: 356065
URL: https://svnweb.freebsd.org/changeset/base/356065
Log:
Initialize the bounce pages list in armv[4|6] DMA maps.
Fixes the crash on the first use of STAILQ_INSERT_TAIL() in
add_bounce_page().
Sponsored by: Rubicon Communications, LLC (Netgate)
Modified:
head/sys/arm/arm/busdma_machdep-v4.c
head/sys/arm/arm/busdma_machdep-v6.c
Modified: head/sys/arm/arm/busdma_machdep-v4.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep-v4.c Tue Dec 24 23:20:18 2019
(r356064)
+++ head/sys/arm/arm/busdma_machdep-v4.c Tue Dec 24 23:43:29 2019
(r356065)
@@ -669,6 +669,7 @@ allocate_map(bus_dma_tag_t dmat, int mflags)
return (NULL);
}
map->segments = (bus_dma_segment_t *)((uintptr_t)map + mapsize);
+ STAILQ_INIT(&map->bpages);
return (map);
}
Modified: head/sys/arm/arm/busdma_machdep-v6.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep-v6.c Tue Dec 24 23:20:18 2019
(r356064)
+++ head/sys/arm/arm/busdma_machdep-v6.c Tue Dec 24 23:43:29 2019
(r356065)
@@ -735,6 +735,7 @@ allocate_map(bus_dma_tag_t dmat, int mflags)
return (NULL);
}
map->segments = (bus_dma_segment_t *)((uintptr_t)map + mapsize);
+ STAILQ_INIT(&map->bpages);
return (map);
}
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