[PATCH] Check kmalloc return value before use the buffer
in [Kernel]
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From: Steven Liu on 6 May 2010 22:50 Hi,linus.walleij Check kmalloc return value before use the buffer Signed-off-by: LiuQi <lingjiujianke(a)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 962f9de..4f2af7c 100644 --- a/arch/arm/mach-u300/dummyspichip.c +++ b/arch/arm/mach-u300/dummyspichip.c @@ -63,6 +63,11 @@ static ssize_t dummy_looptest(struct device *dev, goto out; } bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL); + if (bigtxbuf_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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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