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[POWERPC] Fix crash in init_ipic_sysfs on efika

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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>
This commit is contained in:
Olaf Hering
2008-03-18 06:53:05 +11:00
committed by Paul Mackerras
parent cfe666b145
commit 1428a9fa58
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/sysdev/ipic.c
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@@ -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");