lkml.org 
[lkml]   [2010]   [May]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] Check kmalloc return value before use the buffer
From
Signed-off-by: LiuQi <lingjiujianke@gmail.com>
---
arch/arm/mach-u300/dummyspichip.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-u300/dummyspichip.c
b/arch/arm/mach-u300/dummyspichip.c
index 5f55012..df19f9b 100644
--- a/arch/arm/mach-u300/dummyspichip.c
+++ b/arch/arm/mach-u300/dummyspichip.c
@@ -64,6 +64,11 @@ static ssize_t dummy_looptest(struct device *dev,
goto out;
}
bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
+ if (bigrxbuf_virtual == NULL) {
+ status = -ENOMEM;
+ kfree(bigtxbuf_virtual);
+ goto out;
+ }

/* Fill TXBUF with some happy pattern */
memset(bigtxbuf_virtual, 0xAA, DMA_TEST_SIZE);
--
1.6.0.3

\
 
 \ /
  Last update: 2010-05-07 11:09    [W:0.216 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site