diff options
author | Julia Lawall <julia@diku.dk> | 2008-12-21 16:39:37 +0100 |
---|---|---|
committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 11:13:22 -0800 |
commit | b8d9cb2a2226118fd71f657c80b06b670a653022 (patch) | |
tree | 1f5d4874dfe51ce70203ae8415fa2c2413298e4a /drivers/pci/hotplug/cpqphp_ctrl.c | |
parent | 322162a71bd9fc4edb1b11236e7bc8aa27ccac22 (diff) | |
download | op-kernel-dev-b8d9cb2a2226118fd71f657c80b06b670a653022.zip op-kernel-dev-b8d9cb2a2226118fd71f657c80b06b670a653022.tar.gz |
PCI hotplug: remove redundant test in cpq hotplug
func is checked not to be NULL a few lines before.
A simplified version of the semantic patch that makes this change is as
follows: (http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
expression E;
position p1,p2;
@@
if (x@p1 == NULL || ...) { ... when forall
return ...; }
... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
(
x@p2 == NULL
|
x@p2 != NULL
)
// another path to the test that is not through p1?
@s exists@
local idexpression r.x;
position r.p1,r.p2;
@@
... when != x@p1
(
x@p2 == NULL
|
x@p2 != NULL
)
@fix depends on !s@
position r.p1,r.p2;
expression x,E;
statement S1,S2;
@@
(
- if ((x@p2 != NULL) || ...)
S1
|
- if ((x@p2 == NULL) && ...) S1
|
- BUG_ON(x@p2 == NULL);
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/hotplug/cpqphp_ctrl.c')
-rw-r--r-- | drivers/pci/hotplug/cpqphp_ctrl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index d947221..cc227a8 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -1954,7 +1954,7 @@ void cpqhp_pushbutton_thread(unsigned long slot) return ; } - if (func != NULL && ctrl != NULL) { + if (ctrl != NULL) { if (cpqhp_process_SI(ctrl, func) != 0) { amber_LED_on(ctrl, hp_slot); green_LED_off(ctrl, hp_slot); |