summaryrefslogtreecommitdiffstats
path: root/kernel/dma/mapping.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/dma/mapping.c')
-rw-r--r--kernel/dma/mapping.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index 27f272381cf2..33437d620644 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -10,6 +10,7 @@
#include <linux/dma-map-ops.h>
#include <linux/export.h>
#include <linux/gfp.h>
+#include <linux/kmsan.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
@@ -156,6 +157,7 @@ dma_addr_t dma_map_page_attrs(struct device *dev, struct page *page,
addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
else
addr = ops->map_page(dev, page, offset, size, dir, attrs);
+ kmsan_handle_dma(page, offset, size, dir);
debug_dma_map_page(dev, page, offset, size, dir, addr, attrs);
return addr;
@@ -194,11 +196,13 @@ static int __dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
else
ents = ops->map_sg(dev, sg, nents, dir, attrs);
- if (ents > 0)
+ if (ents > 0) {
+ kmsan_handle_dma_sg(sg, nents, dir);
debug_dma_map_sg(dev, sg, nents, ents, dir, attrs);
- else if (WARN_ON_ONCE(ents != -EINVAL && ents != -ENOMEM &&
- ents != -EIO && ents != -EREMOTEIO))
+ } else if (WARN_ON_ONCE(ents != -EINVAL && ents != -ENOMEM &&
+ ents != -EIO && ents != -EREMOTEIO)) {
return -EIO;
+ }
return ents;
}