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mtd: nand: ams-delta: fix overwritten mtd_info->owner in initialization

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In initialization routine, mtd_info->owner is overwritten by memset()
just after being initialized.  This can be fixed by moving memset() calls
to just before setting mtd_info->owner.  But the memory region is allocated
by kmalloc, so we can fix it by using kzalloc instead of kmalloc.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jonathan McDowell <noodles@earth.li>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Akinobu Mita 2015-01-11 22:07:20 +09:00 committed by Brian Norris
parent 45c6a0caeb
commit 526789fc53
1 changed files with 1 additions and 5 deletions
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6
drivers/mtd/nand/ams-delta.c
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@ -183,7 +183,7 @@ static int ams_delta_init(struct platform_device *pdev)
return -ENXIO;
/* Allocate memory for MTD device structure and private data */
ams_delta_mtd = kmalloc(sizeof(struct mtd_info) +
ams_delta_mtd = kzalloc(sizeof(struct mtd_info) +
sizeof(struct nand_chip), GFP_KERNEL);
if (!ams_delta_mtd) {
printk (KERN_WARNING "Unable to allocate E3 NAND MTD device structure.\n");
@ -196,10 +196,6 @@ static int ams_delta_init(struct platform_device *pdev)
/* Get pointer to private data */
this = (struct nand_chip *) (&ams_delta_mtd[1]);
/* Initialize structures */
memset(ams_delta_mtd, 0, sizeof(struct mtd_info));
memset(this, 0, sizeof(struct nand_chip));
/* Link the private data with the MTD structure */
ams_delta_mtd->priv = this;