cross-tree: phase out dma_zalloc_coherent()

We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c
index 8b0ebf3940d2..ebed46f80254 100644
--- a/arch/powerpc/sysdev/fsl_rmu.c
+++ b/arch/powerpc/sysdev/fsl_rmu.c
@@ -756,9 +756,10 @@ fsl_open_outb_mbox(struct rio_mport *mport, void *dev_id, int mbox, int entries)
         }
 
         /* Initialize outbound message descriptor ring */
-        rmu->msg_tx_ring.virt = dma_zalloc_coherent(priv->dev,
-                                rmu->msg_tx_ring.size * RIO_MSG_DESC_SIZE,
-                                &rmu->msg_tx_ring.phys, GFP_KERNEL);
+        rmu->msg_tx_ring.virt = dma_alloc_coherent(priv->dev,
+                                                   rmu->msg_tx_ring.size * RIO_MSG_DESC_SIZE,
+                                                   &rmu->msg_tx_ring.phys,
+                                                   GFP_KERNEL);
         if (!rmu->msg_tx_ring.virt) {
                 rc = -ENOMEM;
                 goto out_dma;