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Subject[PATCH 1/6] mailbox: bcm-flexrm-mailbox: Cocci spatch "pool_zalloc-simple"
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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>
---

diff -u -p a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1258,14 +1258,13 @@ static int flexrm_startup(struct mbox_ch
}

/* Allocate completion memory */
- ring->cmpl_base = dma_pool_alloc(ring->mbox->cmpl_pool,
- GFP_KERNEL, &ring->cmpl_dma_base);
+ ring->cmpl_base = dma_pool_zalloc(ring->mbox->cmpl_pool, GFP_KERNEL,
+ &ring->cmpl_dma_base);
if (!ring->cmpl_base) {
dev_err(ring->mbox->dev, "can't allocate completion memory\n");
ret = -ENOMEM;
goto fail_free_bd_memory;
}
- memset(ring->cmpl_base, 0, RING_CMPL_SIZE);

/* Request IRQ */
if (ring->irq == UINT_MAX) {
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