lkml.org 
[lkml]   [2010]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] random: Check kmalloc return value and give the failed message
From
Hi, Matt Mackall,

Check kmalloc return value and give the failed message

Signed-off-by: Liu Qi <lingjiujianke@gmail.com>
---
drivers/char/random.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2fd3d39..d1bedeb 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -952,8 +952,11 @@ static void init_std_data(struct entropy_store *r)
mix_pool_bytes(r, &now, sizeof(now));
mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
/* Enable continuous test in fips mode */
- if (fips_enabled)
+ if (fips_enabled){
r->last_data = kmalloc(EXTRACT_SIZE, GFP_KERNEL);
+ if(r->last_data == NULL)
+ printk(KERN_ERR "kmalloc memory failed in %s \n", __func__);
+ }
}

static int rand_initialize(void)
--
1.7.1


Best regards


\
 
 \ /
  Last update: 2010-05-18 07:25    [W:0.033 / U:153.668 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site