1 files changed, 6 insertions, 0 deletions

diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index 35c37b7f717a..4aa926054531 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -164,11 +164,17 @@ void flush_cache_all(void)
 
 void flush_cache_mm(struct mm_struct *mm)
 {
+        if (boot_cpu_data.dcache.n_aliases == 0)
+                return;
+
         cacheop_on_each_cpu(local_flush_cache_mm, mm, 1);
 }
 
 void flush_cache_dup_mm(struct mm_struct *mm)
 {
+        if (boot_cpu_data.dcache.n_aliases == 0)
+                return;
+
         cacheop_on_each_cpu(local_flush_cache_dup_mm, mm, 1);
 }