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fix null pointer dereference introduced in last sigprocmask commit

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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
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2
src/signal/sigprocmask.c
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@ -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);