From: Greg Ungerer <gerg@snapgear.com>
Date: Mon, 7 Nov 2005 04:09:50 +0000 (+1000)
Subject: [PATCH] check for failed kmalloc in inftlmount.c
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8766af935f3f018ec4fd420644360643838ec323;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] check for failed kmalloc in inftlmount.c

The INFTL mount code contains a kmalloc() followed by a memset() without
handling a possible memory allocation failure.

Signed-off-by: <panagiotis.issaris@mech.kuleuven.ac.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c
index b5dda47395a7..3dac53feeee2 100644
--- a/drivers/mtd/inftlmount.c
+++ b/drivers/mtd/inftlmount.c
@@ -574,6 +574,12 @@ int INFTL_mount(struct INFTLrecord *s)
 
 	/* Temporary buffer to store ANAC numbers. */
 	ANACtable = kmalloc(s->nb_blocks * sizeof(u8), GFP_KERNEL);
+	if (!ANACtable) {
+		printk(KERN_WARNING "INFTL: allocation of ANACtable "
+				"failed (%zd bytes)\n",
+				s->nb_blocks * sizeof(u8));
+		return -ENOMEM;
+	}
 	memset(ANACtable, 0, s->nb_blocks);
 
 	/*