drivers/cpufreq/pcc-cpufreq.c: fix error return code
authorJulia Lawall <julia@diku.dk>
Sun, 5 Aug 2012 20:56:43 +0000 (22:56 +0200)
committerRafael J. Wysocki <rjw@sisk.pl>
Wed, 8 Aug 2012 18:49:25 +0000 (20:49 +0200)
commitd06a8a4fe7d81e8d1fa3d753be9b14c785b4b2e7
tree53c37d8dfd742515cbb22e392c01e45dd34b1505
parent7523ceed42d84c1afaa1dc498bffed53c2aa444e
drivers/cpufreq/pcc-cpufreq.c: fix error return code

Convert a 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@diku.dk>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
drivers/cpufreq/pcc-cpufreq.c