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authorAlastair Bridgewater <alastair.bridgewater@gmail.com>2010-06-12 15:36:48 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-06-15 15:02:37 +1000
commit7c9d93604b25c25dc059e2b12ad5e89ca3ed4376 (patch)
treec90754b945d510aa7e7eada626814e0ce33812e3 /arch/powerpc
parentbd2b64a12bf55bec0d1b949e3dca3f8863409646 (diff)
powerpc: Fix mpic_resume on early G5 macs
mpic_resume() on G5 macs blindly dereferences mpic->fixups, but it may legitimately be NULL (as on PowerMac7,2). Add an explicit check. This fixes suspend-to-disk with one processor (maxcpus=1) for me. Signed-off-by: Alastair Bridgewater <alastair.bridgewater@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/sysdev/mpic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 2102487612a4..20b73c025a45 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1666,7 +1666,7 @@ static int mpic_resume(struct sys_device *dev)
mpic->save_data[i].dest);
#ifdef CONFIG_MPIC_U3_HT_IRQS
- {
+ if (mpic->fixups) {
struct mpic_irq_fixup *fixup = &mpic->fixups[i];
if (fixup->base) {