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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-06-25 10:09:57 +0800
committerThierry Reding <thierry.reding@gmail.com>2013-06-25 12:20:06 +0200
commit00cf99ee00c9f1241359c8ee5ca9230318e27a57 (patch)
treefdc55d0586d97830851444ceb48e3a9c11fa7d7d /drivers/pwm/pwm-renesas-tpu.c
parent99b82abb0a35b07310ea6334257829af168c8e08 (diff)
downloadlinux-00cf99ee00c9f1241359c8ee5ca9230318e27a57.tar.bz2
pwm: renesas-tpu: fix return value check in tpu_probe()
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-renesas-tpu.c')
-rw-r--r--drivers/pwm/pwm-renesas-tpu.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-renesas-tpu.c b/drivers/pwm/pwm-renesas-tpu.c
index 96e0cc488a4e..03c1aa3c48a2 100644
--- a/drivers/pwm/pwm-renesas-tpu.c
+++ b/drivers/pwm/pwm-renesas-tpu.c
@@ -410,10 +410,8 @@ static int tpu_probe(struct platform_device *pdev)
}
tpu->base = devm_ioremap_resource(&pdev->dev, res);
- if (tpu->base == NULL) {
- dev_err(&pdev->dev, "failed to remap I/O memory\n");
- return -ENXIO;
- }
+ if (IS_ERR(tpu->base))
+ return PTR_ERR(tpu->base);
tpu->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(tpu->clk)) {