[PATCH 4/6] mvsas: Cocci spatch "pool_zalloc-simple"

[Thomas Meyer]

Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0.
Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci"

Signed-off-by: Thomas Meyer <tho...@m3y3r.de>
---

diff -u -p a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -790,12 +790,11 @@ static int mvs_task_prep(struct sas_task
        slot->n_elem = n_elem;
        slot->slot_tag = tag;
 
-       slot->buf = dma_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma);
+       slot->buf = dma_pool_zalloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma);
        if (!slot->buf) {
                rc = -ENOMEM;
                goto err_out_tag;
        }
-       memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
 
        tei.task = task;
        tei.hdr = &mvi->slot[tag];