From f61bd0585dfc7d99db4936d7467de4ca8e2f7ea0 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 21 Sep 2012 15:09:47 +0800 Subject: [PATCH] can: mscan-mpc5xxx: fix return value check in mpc512x_can_get_clock() In case of error, the function clk_get() returns ERR_PTR() and never returns NULL pointer. The NULL test in the error handling should be replaced with IS_ERR(). dpatch engine is used to auto generated this patch. (https://github.com/weiyj/dpatch) Cc: stable Signed-off-by: Wei Yongjun Acked-by: Wolfgang Grandegger Signed-off-by: Marc Kleine-Budde --- drivers/net/can/mscan/mpc5xxx_can.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index 06adf881ea24..524ef96dc24d 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -181,7 +181,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev, if (!clock_name || !strcmp(clock_name, "sys")) { sys_clk = clk_get(&ofdev->dev, "sys_clk"); - if (!sys_clk) { + if (IS_ERR(sys_clk)) { dev_err(&ofdev->dev, "couldn't get sys_clk\n"); goto exit_unmap; } @@ -204,7 +204,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev, if (clocksrc < 0) { ref_clk = clk_get(&ofdev->dev, "ref_clk"); - if (!ref_clk) { + if (IS_ERR(ref_clk)) { dev_err(&ofdev->dev, "couldn't get ref_clk\n"); goto exit_unmap; }