linux-kernel - [PATCH 02/15] arm/mach-u300: check kmalloc result

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Message-Id: <1279296767-24823-1-git-send-email-segooon@gmail.com>
Date:	Fri, 16 Jul 2010 20:12:46 +0400
From:	Kulikov Vasiliy <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Linus Walleij <linus.walleij@...ricsson.com>,
	Russell King <linux@....linux.org.uk>,
	Tejun Heo <tj@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 02/15] arm/mach-u300: check kmalloc result

If kmalloc() fails free already allocated memory and exit with -ENOMEM.

Signed-off-by: Kulikov Vasiliy <segooon@...il.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..452218a 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) {
+		kfree(bigtxbuf_virtual);
+		status = -ENOMEM;
+		goto out;
+	}
 
 	/* Fill TXBUF with some happy pattern */
 	memset(bigtxbuf_virtual, 0xAA, DMA_TEST_SIZE);
-- 
1.7.0.4

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