hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MIPS: SNI: Correct NULL test 

Test the value that was just allocated rather than the previously tested one.

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

// <smpl>
@r@
expression *x;
expression e;
identifier l;
@@

if (x == NULL || ...) {
    ... when forall
    return ...; }
... when != goto l;
    when != x = e
    when != &x
*x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
To: kernel-janitors@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/945/
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Julia Lawall 2010-02-06 09:42:16 +01:00 committed by Ralf Baechle
parent 63731c964d
commit c2d5b5e525
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/sni/rm200.c
View File

@ -404,7 +404,7 @@ void __init sni_rm200_i8259_irqs(void)
if (!rm200_pic_master) if (!rm200_pic_master)
return; return;
rm200_pic_slave = ioremap_nocache(0x160000a0, 4); rm200_pic_slave = ioremap_nocache(0x160000a0, 4);
if (!rm200_pic_master) { if (!rm200_pic_slave) {
iounmap(rm200_pic_master); iounmap(rm200_pic_master);
return; return;
} }