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

Message ID 1505974468535-1535923349-4-diffsplit-thomas@m3y3r.de (mailing list archive)
State Deferred
Headers show

Commit Message

Thomas Meyer Sept. 21, 2017, 6:15 a.m. UTC 
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 <thomas@m3y3r.de>
---
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Patch

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];