From: Julia Lawall <julia@diku.dk>
Date: Wed, 11 Aug 2010 10:10:48 +0000 (+0200)
Subject: USB: gadget: Return -ENOMEM on memory allocation failure
X-Git-Tag: v2.6.36-rc3~41^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c81aafaf059b81ead2330bc13db78269ef62612;p=pandora-kernel.git

USB: gadget: Return -ENOMEM on memory allocation failure

In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@

ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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