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-rw-r--r--arch/microblaze/kernel/cpu/cache.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
index 0bde47e4fa69..dcba53803fa5 100644
--- a/arch/microblaze/kernel/cpu/cache.c
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -92,7 +92,8 @@ static inline void __disable_dcache_nomsr(void)
#define CACHE_LOOP_LIMITS(start, end, cache_line_length, cache_size) \
do { \
int align = ~(cache_line_length - 1); \
- end = min(start + cache_size, end); \
+ if (start < UINT_MAX - cache_size) \
+ end = min(start + cache_size, end); \
start &= align; \
} while (0)