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mtd: cs553x_nand: Fix kasprintf() usage

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kasprintf() does a dynamic memory allocation and can fail.
We have to handle that case.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Richard Weinberger 2015-06-01 23:10:51 +02:00 committed by Brian Norris
parent 905cce7f43
commit bc349da0a6
1 changed files with 10 additions and 4 deletions
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14
drivers/mtd/nand/cs553x_nand.c
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@ -237,17 +237,23 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
/* Enable the following for a flash based bad block table */
this->bbt_options = NAND_BBT_USE_FLASH;
/* Scan to find existence of the device */
if (nand_scan(new_mtd, 1)) {
err = -ENXIO;
new_mtd->name = kasprintf(GFP_KERNEL, "cs553x_nand_cs%d", cs);
if (!new_mtd->name) {
err = -ENOMEM;
goto out_ior;
}
new_mtd->name = kasprintf(GFP_KERNEL, "cs553x_nand_cs%d", cs);
/* Scan to find existence of the device */
if (nand_scan(new_mtd, 1)) {
err = -ENXIO;
goto out_free;
}
cs553x_mtd[cs] = new_mtd;
goto out;
out_free:
kfree(new_mtd->name);
out_ior:
iounmap(this->IO_ADDR_R);
out_mtd: