[MTD] replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <yan_952@hotmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

3 files changed, 4 insertions, 9 deletions

diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 6107f532855b..12608c13cce5 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1635,13 +1635,12 @@ static int __init doc_probe(unsigned long physadr)
 
 	len = sizeof(struct mtd_info) +
 	    sizeof(struct nand_chip) + sizeof(struct doc_priv) + (2 * sizeof(struct nand_bbt_descr));
-	mtd = kmalloc(len, GFP_KERNEL);
+	mtd = kzalloc(len, GFP_KERNEL);
 	if (!mtd) {
 		printk(KERN_ERR "DiskOnChip kmalloc (%d bytes) failed!\n", len);
 		ret = -ENOMEM;
 		goto fail;
 	}
-	memset(mtd, 0, len);
 
 	nand			= (struct nand_chip *) (mtd + 1);
 	doc			= (struct doc_priv *) (nand + 1);
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 4e74fe9af29e..5e121ceaa598 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -960,14 +960,12 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 	struct nand_bbt_descr *md = this->bbt_md;
 
 	len = mtd->size >> (this->bbt_erase_shift + 2);
-	/* Allocate memory (2bit per block) */
-	this->bbt = kmalloc(len, GFP_KERNEL);
+	/* Allocate memory (2bit per block) and clear the memory bad block table */
+	this->bbt = kzalloc(len, GFP_KERNEL);
 	if (!this->bbt) {
 		printk(KERN_ERR "nand_scan_bbt: Out of memory\n");
 		return -ENOMEM;
 	}
-	/* Clear the memory bad block table */
-	memset(this->bbt, 0x00, len);
 
 	/* If no primary table decriptor is given, scan the device
 	 * to build a memory based bad block table
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index abebcab47631..3d39451ae8f5 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1511,14 +1511,12 @@ static int __init ns_init_module(void)
 	}
 
 	/* Allocate and initialize mtd_info, nand_chip and nandsim structures */
-	nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
+	nsmtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
 				+ sizeof(struct nandsim), GFP_KERNEL);
 	if (!nsmtd) {
 		NS_ERR("unable to allocate core structures.\n");
 		return -ENOMEM;
 	}
-	memset(nsmtd, 0, sizeof(struct mtd_info) + sizeof(struct nand_chip) +
-			sizeof(struct nandsim));
 	chip        = (struct nand_chip *)(nsmtd + 1);
         nsmtd->priv = (void *)chip;
 	nand        = (struct nandsim *)(chip + 1);