diff --git a/include/linux/slab.h b/include/linux/slab.h
index 231abc8976c5..296f33a512eb 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -308,7 +308,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
  * 2 = 129 .. 192 bytes
  * n = 2^(n-1)+1 .. 2^n
  */
-static __always_inline int kmalloc_index(size_t size)
+static __always_inline unsigned int kmalloc_index(size_t size)
 {
 	if (!size)
 		return 0;
@@ -504,7 +504,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
 			return kmalloc_large(size, flags);
 #ifndef CONFIG_SLOB
 		if (!(flags & GFP_DMA)) {
-			int index = kmalloc_index(size);
+			unsigned int index = kmalloc_index(size);
 
 			if (!index)
 				return ZERO_SIZE_PTR;
@@ -542,7 +542,7 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 #ifndef CONFIG_SLOB
 	if (__builtin_constant_p(size) &&
 		size <= KMALLOC_MAX_CACHE_SIZE && !(flags & GFP_DMA)) {
-		int i = kmalloc_index(size);
+		unsigned int i = kmalloc_index(size);
 
 		if (!i)
 			return ZERO_SIZE_PTR;