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authorOlaf Hering <olaf@aepfle.de>2008-03-18 06:53:05 +1100
committerPaul Mackerras <paulus@samba.org>2008-03-24 17:55:00 +1100
commit1428a9fa586cb80acf98289f797f58b8bd662598 (patch)
treeb65ed9449d1e5c824318f91f8dfe4a2832d0dc29 /arch/powerpc
parentcfe666b145cecffe784d98e60ffe201a5dc57ac3 (diff)
[POWERPC] Fix crash in init_ipic_sysfs on efika
The global primary_ipic in arch/powerpc/sysdev/ipic.c can remain NULL if ipic_init() fails, which will happen on machines that don't have an ipic interrupt controller. init_ipic_sysfs() will crash in that case. Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/sysdev/ipic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index ae0dbf4c1d6..0f2dfb0aaa6 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -906,7 +906,7 @@ static int __init init_ipic_sysfs(void)
{
int rc;
- if (!primary_ipic->regs)
+ if (!primary_ipic || !primary_ipic->regs)
return -ENODEV;
printk(KERN_DEBUG "Registering ipic with sysfs...\n");