ALSA: Use dma_zalloc_coherent

Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 8 deletions

diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 467836057ee5..a80d5ea87ccd 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -47,15 +47,11 @@ static int alloc_dbdma_descriptor_ring(struct i2sbus_dev *i2sdev,
         /* We use the PCI APIs for now until the generic one gets fixed
          * enough or until we get some macio-specific versions
          */
-        r->space = dma_alloc_coherent(
-                        &macio_get_pci_dev(i2sdev->macio)->dev,
-                        r->size,
-                        &r->bus_addr,
-                        GFP_KERNEL);
+        r->space = dma_zalloc_coherent(&macio_get_pci_dev(i2sdev->macio)->dev,
+                                       r->size, &r->bus_addr, GFP_KERNEL);
+        if (!r->space)
+                return -ENOMEM;
 
-        if (!r->space) return -ENOMEM;
-
-        memset(r->space, 0, r->size);
         r->cmds = (void*)DBDMA_ALIGN(r->space);
         r->bus_cmd_start = r->bus_addr +
                            (dma_addr_t)((char*)r->cmds - (char*)r->space);