malloc: Fix checking for small negative values of tcache_key

tcache_key is unsigned so we should turn it explicitly to signed before
taking its absolute value.

diff --git a/malloc/malloc.c b/malloc/malloc.c
index c135916d3204d367b50d1a15a70443c23334d0ce..e08873cad50ee9b05bda1eb3b50cef954ff7685a 100644 (file)
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -3108,7 +3108,7 @@ tcache_key_initialize (void)
   int minimum_bits = __WORDSIZE / 4;
   int maximum_bits = __WORDSIZE - minimum_bits;
 
-  while (labs (tcache_key) <= 0x1000000
+  while (labs ((intptr_t) tcache_key) <= 0x1000000
       || stdc_count_ones (tcache_key) < minimum_bits
       || stdc_count_ones (tcache_key) > maximum_bits)
     {