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authorMaxim Uvarov <muvarov@gmail.com>2010-05-11 05:41:08 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2011-03-21 12:45:33 -0700
commita3e580e27b823487f5049dde077253915351409a (patch)
tree512d1144948028165238e18d7203d715a5e0a427 /arch
parent5c1ce60272a33ea4864e24d7dea40af3d947374a (diff)
powerpc/crashdump: Do not fail on NULL pointer dereferencing
commit 426b6cb478e60352a463a0d1ec75c1c9fab30b13 upstream. Signed-off-by: Maxim Uvarov <muvarov@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Kamalesh babulal <kamalesh@linux.vnet.ibm.com> cc: Anton Blanchard <anton@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/crash.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 038437621de8..cca7c8fafc1c 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -377,6 +377,9 @@ 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);