tree 80c5d38c591e85fe004b571c84414d5603726b02
parent f004ec728bff3cf924ffc19387baca503cd73b01
author Julia Lawall <julia@diku.dk> 1248675210 +0000
committer David S. Miller <davem@davemloft.net> 1248719728 -0700

drivers/net: Correct redundant test

res has already been tested.  It seems that this test should be on the
recently returned value mmio.

A simplified version of the semantic match that finds this problem is as
follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
expression E;
@@

if (x == NULL || ...) { ... when forall
   return ...; }
... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
(
*x == NULL
|
*x != NULL
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>