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-rw-r--r--src/slab.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/slab.c b/src/slab.c
index bf26c84cca..f4806ddb60 100644
--- a/src/slab.c
+++ b/src/slab.c
@@ -398,10 +398,10 @@ void rt_system_heap_init(void *begin_addr, void *end_addr)
* Calculate the zone index for the allocation request size and set the
* allocation request size to that particular zone's chunk size.
*/
-rt_inline int zoneindex(rt_uint32_t *bytes)
+rt_inline int zoneindex(rt_size_t *bytes)
{
/* unsigned for shift opt */
- rt_uint32_t n = (rt_uint32_t) * bytes;
+ rt_uint32_t n = (rt_uint32_t)(*bytes);
if (n < 128)
{