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powerpc/crashdump: Do not fail on NULL pointer dereferencing

PATCH In review Kamalesh Babulal 1 participant 1 message Mar 7, 2011 PowerPC

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Kamalesh Babulal

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PATCH 6/7 powerpc/crashdump: Do not fail on NULL pointer dereferencing

powerpc/crashdump: Do not fail on NULL pointer dereferencing

Commit: 426b6cb478e60352a463a0d1ec75c1c9fab30b13 upstream

Signed-off-by Maxim Uvarov <[email protected]>
Signed-off-by Benjamin Herrenschmidt <[email protected]>
Signed-off-by Kamalesh babulal <[email protected]>
cc Anton Blanchard <[email protected]>
---
 arch/powerpc/kernel/crash.c |    3 +++
 1 file changed, 3 insertions(+)
arch/powerpc/kernel/crash.c +0 -0
Index: b/arch/powerpc/kernel/crash.c
===================================================================
@@ -378,6 +378,9 @@

	for_each_irq(i) {
		struct irq_desc *desc = irq_desc + i;

+ if (!desc || !desc->chip || !desc->chip->eoi)
+ continue;
+

		if (desc->status & IRQ_INPROGRESS)
			desc->chip->eoi(i);