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Only use F_SETSIG fcntl where it exists.

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Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Thomas Klausner 2016-03-03 12:57:34 +01:00 • committed by Takashi Iwai
parent 31230b2427
commit 0e3e574012
1 changed files with 2 additions and 0 deletions
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2
src/timer/timer_hw.c
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@ -85,10 +85,12 @@ static int snd_timer_hw_async(snd_timer_t *timer, int sig, pid_t pid)
} }
if (sig < 0) if (sig < 0)
return 0; return 0;
#ifdef F_SETSIG
if (fcntl(fd, F_SETSIG, (long)sig) < 0) { if (fcntl(fd, F_SETSIG, (long)sig) < 0) {
SYSERR("F_SETSIG failed"); SYSERR("F_SETSIG failed");
return -errno; return -errno;
} }
#endif
if (fcntl(fd, F_SETOWN, (long)pid) < 0) { if (fcntl(fd, F_SETOWN, (long)pid) < 0) {
SYSERR("F_SETOWN failed"); SYSERR("F_SETOWN failed");
return -errno; return -errno;