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* [PATCH] ARM: zx: Fix error handling
@ 2016-10-30  8:10 Christophe JAILLET
  2016-10-31 16:20 ` Russell King - ARM Linux
  2016-11-07 21:18 ` Olof Johansson
  0 siblings, 2 replies; 3+ messages in thread
From: Christophe JAILLET @ 2016-10-30  8:10 UTC (permalink / raw)
  To: jun.nie, linux
  Cc: linux-arm-kernel, linux-kernel, kernel-janitors,
	Christophe JAILLET

'devm_ioremap_resource()' returns an error pointer in case of error, not
NULL. So test it with IS_ERR.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
'return -EIO;' could also be turned into 'return PTR_ERR(pcubase);' in
order to propagate the error value.
---
 arch/arm/mach-zx/zx296702-pm-domain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-zx/zx296702-pm-domain.c b/arch/arm/mach-zx/zx296702-pm-domain.c
index e08574d4e2ca..79dcf2549267 100644
--- a/arch/arm/mach-zx/zx296702-pm-domain.c
+++ b/arch/arm/mach-zx/zx296702-pm-domain.c
@@ -169,7 +169,7 @@ static int zx296702_pd_probe(struct platform_device *pdev)
 	}
 
 	pcubase = devm_ioremap_resource(&pdev->dev, res);
-	if (!pcubase) {
+	if (IS_ERR(pcubase)) {
 		dev_err(&pdev->dev, "ioremap fail.\n");
 		return -EIO;
 	}
-- 
2.9.3

^ permalink raw reply related	[flat|nested] 3+ messages in thread

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2016-10-30  8:10 [PATCH] ARM: zx: Fix error handling Christophe JAILLET
2016-10-31 16:20 ` Russell King - ARM Linux
2016-11-07 21:18 ` Olof Johansson

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