* [PATCH] x86: UV: use kzalloc()
@ 2011-08-06 11:26 Thomas Meyer
0 siblings, 0 replies; only message in thread
From: Thomas Meyer @ 2011-08-06 11:26 UTC (permalink / raw)
To: Ingo Molnar, x86, linux-kernel
From: Thomas Meyer <thomas@m3y3r.de>
Use kzalloc rather than kmalloc followed by memset with 0
This considers some simple cases that are common and easy to validate
Note in particular that there are no ...s in the rule, so all of the
matched code has to be contiguous
The semantic patch that makes this output is available
in scripts/coccinelle/api/alloc/kzalloc-simple.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---
diff -u -p a/arch/x86/platform/uv/uv_time.c b/arch/x86/platform/uv/uv_time.c
--- a/arch/x86/platform/uv/uv_time.c 2011-06-07 00:56:19.823210498 +0200
+++ b/arch/x86/platform/uv/uv_time.c 2011-08-01 20:37:27.360951099 +0200
@@ -158,10 +158,9 @@ static __init int uv_rtc_allocate_timers
{
int cpu;
- blade_info = kmalloc(uv_possible_blades * sizeof(void *), GFP_KERNEL);
+ blade_info = kzalloc(uv_possible_blades * sizeof(void *), GFP_KERNEL);
if (!blade_info)
return -ENOMEM;
- memset(blade_info, 0, uv_possible_blades * sizeof(void *));
for_each_present_cpu(cpu) {
int nid = cpu_to_node(cpu);
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2011-08-06 11:26 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-08-06 11:26 [PATCH] x86: UV: use kzalloc() Thomas Meyer
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.