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* [PATCH] ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
@ 2021-08-31  9:57 Jackie Liu
  2021-09-01 12:09 ` Krzysztof Kozlowski
  0 siblings, 1 reply; 6+ messages in thread
From: Jackie Liu @ 2021-08-31  9:57 UTC (permalink / raw)
  To: krzysztof.kozlowski; +Cc: linux-samsung-soc, liuyun01

From: Jackie Liu <liuyun01@kylinos.cn>

The s3c24xx_init_intc() returns an error pointer upon failure, not NULL.
let's add an error pointer check in s3c24xx_handle_irq.

Fixes: 1f629b7a3ced ("ARM: S3C24XX: transform irq handling into a declarative form")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
---
 arch/arm/mach-s3c/irq-s3c24xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c/irq-s3c24xx.c b/arch/arm/mach-s3c/irq-s3c24xx.c
index 0c631c14a817..d58bf0f9bf9a 100644
--- a/arch/arm/mach-s3c/irq-s3c24xx.c
+++ b/arch/arm/mach-s3c/irq-s3c24xx.c
@@ -362,11 +362,11 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc,
 static asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
 {
 	do {
-		if (likely(s3c_intc[0]))
+		if (likely(!IS_ERR_OR_NULL(s3c_intc[0])))
 			if (s3c24xx_handle_intc(s3c_intc[0], regs, 0))
 				continue;
 
-		if (s3c_intc[2])
+		if (!IS_ERR_OR_NULL(s3c_intc[2]))
 			if (s3c24xx_handle_intc(s3c_intc[2], regs, 64))
 				continue;
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-09-01 12:39 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-31  9:57 [PATCH] ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc() Jackie Liu
2021-09-01 12:09 ` Krzysztof Kozlowski
2021-09-01 12:28   ` Jackie Liu
2021-09-01 12:28     ` Jackie Liu
2021-09-01 12:31     ` Krzysztof Kozlowski
2021-09-01 12:31       ` Krzysztof Kozlowski

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