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From: Eugene Teo <eugene.teo@eugeneteo.net>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: jkmaline@cc.hut.fi
Subject: Fix hostap_cs double kfree
Date: Wed, 15 Mar 2006 10:39:00 +0800	[thread overview]
Message-ID: <20060315023900.GA8179@eugeneteo.net> (raw)

prism2_config() kfree's twice if kmalloc fails.

Coverity bug #930

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>

--- linux-2.6/drivers/net/wireless/hostap/hostap_cs.c~	2006-03-15 10:05:36.000000000 +0800
+++ linux-2.6/drivers/net/wireless/hostap/hostap_cs.c	2006-03-15 10:24:53.000000000 +0800
@@ -585,8 +585,6 @@
 	parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 	hw_priv = kmalloc(sizeof(*hw_priv), GFP_KERNEL);
 	if (parse == NULL || hw_priv == NULL) {
-		kfree(parse);
-		kfree(hw_priv);
 		ret = -ENOMEM;
 		goto failed;
 	}
@@ -783,8 +781,10 @@
 	cs_error(link->handle, last_fn, last_ret);
 
  failed:
-	kfree(parse);
-	kfree(hw_priv);
+	if (parse)
+		kfree(parse);
+	if (hw_priv)
+		kfree(hw_priv);
 	prism2_release((u_long)link);
 	return ret;
 }

-- 
1024D/A6D12F80 print D51D 2633 8DAC 04DB 7265  9BB8 5883 6DAA A6D1 2F80
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

             reply	other threads:[~2006-03-15  2:51 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-15  2:39 Eugene Teo [this message]
2006-03-15  3:05 ` Fix hostap_cs double kfree Felipe W Damasio
2006-03-15  3:55   ` Eugene Teo
2006-03-15  3:14 ` Jouni Malinen
2006-03-15  6:44   ` Eugene Teo

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