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From: Felipe W Damasio <felipewd@terra.com.br>
To: Andrew Morton <akpm@osdl.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] Memory leak in mtd/chips/cfi_cmdset_0020.c
Date: Tue, 23 Sep 2003 16:25:01 -0300	[thread overview]
Message-ID: <3F709E0D.7090307@terra.com.br> (raw)

[-- Attachment #1: Type: text/plain, Size: 382 bytes --]

	Hi Andrew,

	Patch against 2.6-test5.

	If other kmallocs failed after successfully allocating a "struct 
mtd_info", it should be freed before returning NULL.

	This function is called by inter_module_register...so I'm not sure it 
should really be freed...please review :)

	Don't have the hardware, so just compilation checked.

	Found by the Stanford Checker.

	Thanks,

Felipe

[-- Attachment #2: cfi-0020-leak.patch --]
[-- Type: text/plain, Size: 620 bytes --]

--- linux-2.6.0-test5/drivers/mtd/chips/cfi_cmdset_0020.c.orig	2003-09-23 16:15:35.000000000 -0300
+++ linux-2.6.0-test5/drivers/mtd/chips/cfi_cmdset_0020.c	2003-09-23 16:18:48.000000000 -0300
@@ -208,6 +208,7 @@
 	if (!mtd->eraseregions) { 
 		printk(KERN_ERR "Failed to allocate memory for MTD erase region info\n");
 		kfree(cfi->cmdset_priv);
+		kfree(mtd);
 		return NULL;
 	}
 	
@@ -232,6 +233,7 @@
 			printk(KERN_WARNING "Sum of regions (%lx) != total size of set of interleaved chips (%lx)\n", offset, devsize);
 			kfree(mtd->eraseregions);
 			kfree(cfi->cmdset_priv);
+			kfree(mtd);
 			return NULL;
 		}
 

             reply	other threads:[~2003-09-23 19:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-23 19:25 Felipe W Damasio [this message]
2003-09-23 20:34 ` Andrew Morton
2003-09-23 20:37 ` Jörn Engel

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