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(tr_freehook): Return immediately if ptr is NULL.

This commit is contained in:
Ulrich Drepper 2000-07-13 18:40:43 +00:00
parent fe97f9746a
commit 55465bd987
1 changed files with 3 additions and 1 deletions
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4
malloc/mtrace.c
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@ -1,5 +1,5 @@
/* More debugging hooks for `malloc'.
Copyright (C) 1991,92,93,94,96,97,98,99 Free Software Foundation, Inc.
Copyright (C) 1991,92,93,94,96,97,98,99,2000 Free Software Foundation, Inc.
Written April 2, 1991 by John Gilmore of Cygnus Support.
Based on mcheck.c by Mike Haertel.
@ -127,6 +127,8 @@ tr_freehook (ptr, caller)
__ptr_t ptr;
const __ptr_t caller;
{
if (ptr == NULL)
return;
__libc_lock_lock (lock);
tr_where (caller);
/* Be sure to print it first. */