dbri: check dma_alloc_coherent errors

Needs to check for dma_alloc_coherent() allocation failure.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index c257ad8bdfbc..23ed6f04a718 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -2534,6 +2534,8 @@ static int __devinit snd_dbri_create(struct snd_card *card,
         dbri->dma = dma_alloc_coherent(&op->dev,
                                        sizeof(struct dbri_dma),
                                        &dbri->dma_dvma, GFP_ATOMIC);
+        if (!dbri->dma)
+                return -ENOMEM;
         memset((void *)dbri->dma, 0, sizeof(struct dbri_dma));
 
         dprintk(D_GEN, "DMA Cmd Block 0x%p (0x%08x)\n",