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Diffstat (limited to 'arch/powerpc/sysdev/cpm_common.c')
-rw-r--r--arch/powerpc/sysdev/cpm_common.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index e2ea51961979..e00a5ee58fd7 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -147,7 +147,8 @@ unsigned long cpm_muram_alloc(unsigned long size, unsigned long align)
spin_lock_irqsave(&cpm_muram_lock, flags);
cpm_muram_info.alignment = align;
start = rh_alloc(&cpm_muram_info, size, "commproc");
- memset_io(cpm_muram_addr(start), 0, size);
+ if (!IS_ERR_VALUE(start))
+ memset_io(cpm_muram_addr(start), 0, size);
spin_unlock_irqrestore(&cpm_muram_lock, flags);
return start;