powerpc/crashdump: Do not fail on NULL pointer dereferencing

Signed-off-by: Maxim Uvarov <muvarov@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
git-mirror · May 21, 2010 · 426b6cb · 426b6cb
1 parent ce47c1c
commit 426b6cb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
@@ -375,6 +375,9 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 	for_each_irq(i) {
 		struct irq_desc *desc = irq_to_desc(i);
 
+		if (!desc || !desc->chip || !desc->chip->eoi)
+			continue;
+
 		if (desc->status & IRQ_INPROGRESS)
 			desc->chip->eoi(i);