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| author | Harald Welte <laforge@gnumonks.org> | 2016-12-24 17:59:36 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2016-12-24 17:59:36 +0100 |
| commit | 1514f34dcfed3a8c46678861c488f7dbde856957 (patch) | |
| tree | 9c3b6b265a9fb5a68ab3a130d4d0a944a0544d3f /src/serial.c | |
| parent | d2510459a8b5f4ae0ee3740dd36ca1c4abd290b6 (diff) | |
serial.c: file descriptor '0' is a valid value
if stdin/stdout/stderr are all closed by our environment, it may very
well be that opening a serial port returns fd == 0.
Change-Id: Ifd9670260883a35da0629369e0d49e467d5b4d72
Diffstat (limited to 'src/serial.c')
| -rw-r--r-- | src/serial.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/serial.c b/src/serial.c index 6316e459..05bdc86e 100644 --- a/src/serial.c +++ b/src/serial.c @@ -59,7 +59,7 @@ int osmo_serial_init(const char *dev, speed_t baudrate) { - int rc, fd=0, v24, flags; + int rc, fd=-1, v24, flags; struct termios tio; /* Use nonblock as the device might block otherwise */ @@ -122,7 +122,7 @@ osmo_serial_init(const char *dev, speed_t baudrate) return fd; error: - if (fd) + if (fd >= 0) close(fd); return rc; } |