diff options
| -rw-r--r-- | src/sys/io/dma/alloc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/sys/io/dma/alloc.c b/src/sys/io/dma/alloc.c index 3322879..7af2d87 100644 --- a/src/sys/io/dma/alloc.c +++ b/src/sys/io/dma/alloc.c @@ -35,6 +35,7 @@ #include <vm/mmu.h> #include <vm/map.h> #include <vm/vm.h> +#include <string.h> /* * Allocate DMA pages @@ -42,6 +43,7 @@ void * dma_alloc_pg(size_t npages) { + const size_t PSIZE = DEFAULT_PAGESIZE; struct vm_vas vas; struct mmu_map spec; size_t length; @@ -71,6 +73,7 @@ dma_alloc_pg(size_t npages) } buf = (void *)spec.va; + memset(buf, 0, npages * PSIZE); done: return buf; } |