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.

(cherry picked from commit 8543577b04ded6d979ffcc5a818930e4d74d0645)

diff --git a/malloc/malloc.c b/malloc/malloc.c
index e4e2f03600b5019209dc6b30bad7a4c106778db6..5f3e701fd1358dfde634f19f5fbda1ba194a1f75 100644 (file)
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -3165,7 +3165,7 @@ 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)
     {