From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Tue, 14 Aug 2012 06:47:38 +0000 (+0200)
Subject: drivers/usb/host/ehci-platform.c: fix error return code
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~180
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec03ad85486e94f133a721a5d6fd3aaef1176c46;p=pandora-kernel.git

drivers/usb/host/ehci-platform.c: fix error return code

Convert a possibly 0 error return code to a negative one, as returned
elsewhere in the function.

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

// <smpl>
@@
identifier ret;
expression e,e1,e2,e3,e4,x;
@@

(
if (\(ret != 0\|ret < 0\) || ...) { ... return ...; }
|
ret = 0
)
... when != ret = e1
*x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...);
... when != x = e2
    when != ret = e3
*if (x == NULL || ...)
{
  ... when != ret = e4
*  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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