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-rw-r--r--xorg-server/os/utils.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index ae28ac567..3e3d97011 100644
--- a/xorg-server/os/utils.c
+++ b/xorg-server/os/utils.c
@@ -1245,6 +1245,7 @@ OsBlockSignals(void)
#ifdef SIG_BLOCK
static sig_atomic_t sigio_blocked;
+static sigset_t PreviousSigIOMask;
#endif
/**
@@ -1257,13 +1258,13 @@ OsBlockSIGIO(void)
#ifdef SIGIO
#ifdef SIG_BLOCK
if (sigio_blocked++ == 0) {
- sigset_t set, old;
+ sigset_t set;
int ret;
sigemptyset(&set);
sigaddset(&set, SIGIO);
- sigprocmask(SIG_BLOCK, &set, &old);
- ret = sigismember(&old, SIGIO);
+ sigprocmask(SIG_BLOCK, &set, &PreviousSigIOMask);
+ ret = sigismember(&PreviousSigIOMask, SIGIO);
return ret;
} else
#endif
@@ -1279,11 +1280,7 @@ OsReleaseSIGIO(void)
#ifdef SIGIO
#ifdef SIG_BLOCK
if (--sigio_blocked == 0) {
- sigset_t set;
-
- sigemptyset(&set);
- sigaddset(&set, SIGIO);
- sigprocmask(SIG_UNBLOCK, &set, NULL);
+ sigprocmask(SIG_SETMASK, &PreviousSigIOMask, 0);
} else if (sigio_blocked < 0) {
BUG_WARN(sigio_blocked < 0);
sigio_blocked = 0;