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-rw-r--r--drivers/dma-buf/dma-resv.c2
-rw-r--r--drivers/dma-buf/heaps/system_heap.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index 2a594b754af1..b6f71eb00866 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -660,7 +660,7 @@ EXPORT_SYMBOL_GPL(dma_resv_get_singleton);
* dma_resv_lock() already
* RETURNS
* Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
- * greater than zer on success.
+ * greater than zero on success.
*/
long dma_resv_wait_timeout(struct dma_resv *obj, enum dma_resv_usage usage,
bool intr, unsigned long timeout)
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index ee7059399e9c..b7e488c1b5df 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -41,7 +41,7 @@ struct dma_heap_attachment {
bool mapped;
};
-#define LOW_ORDER_GFP (GFP_HIGHUSER | __GFP_ZERO)
+#define LOW_ORDER_GFP (GFP_HIGHUSER | __GFP_ZERO | __GFP_RETRY_MAYFAIL)
#define HIGH_ORDER_GFP (((GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN \
| __GFP_NORETRY) & ~__GFP_RECLAIM) \
| __GFP_COMP)
@@ -350,6 +350,9 @@ static struct dma_buf *system_heap_allocate(struct dma_heap *heap,
struct page *page, *tmp_page;
int i, ret = -ENOMEM;
+ if (len / PAGE_SIZE > totalram_pages())
+ return ERR_PTR(-ENOMEM);
+
buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
if (!buffer)
return ERR_PTR(-ENOMEM);