fix null pointer dereference introduced in last sigprocmask commit

This commit is contained in:
Rich Felker 2011-02-20 15:16:04 -05:00
parent eee150f39c
commit 96f2197494
1 changed files with 1 additions and 1 deletions

View File

@ -12,7 +12,7 @@ int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
sigset_t tmp;
/* Disallow blocking thread control signals */
if (how != SIG_UNBLOCK) {
if (set && how != SIG_UNBLOCK) {
tmp = *set;
set = &tmp;
sigdelset(&tmp, SIGCANCEL);