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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-09-21 11:09:47 +0400
committerMarc Kleine-Budde <mkl@pengutronix.de>2012-09-22 01:58:48 +0400
commitf61bd0585dfc7d99db4936d7467de4ca8e2f7ea0 (patch)
treed496fda833a14cf8221c7fcb71e8e0044accd9c3 /drivers/net/can/mscan
parent56b9f30198875f199d00554c5e5001f63c5fc8ad (diff)
downloadlinux-f61bd0585dfc7d99db4936d7467de4ca8e2f7ea0.tar.xz
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 <stable@vger.kernel.org> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/mscan')
-rw-r--r--drivers/net/can/mscan/mpc5xxx_can.c4
1 files 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;
}