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| author | Harald Welte <laforge@osmocom.org> | 2020-07-12 23:43:21 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@osmocom.org> | 2020-07-12 23:47:10 +0200 |
| commit | 1b75abe5ce473eaae3ebef898a72010e7e065fae (patch) | |
| tree | 1c1eb955c683c845d9b4a1dc6d2c98c5176ad644 | |
| parent | 73f248fd74661ffc2412629a59c7bb85cdb1c496 (diff) | |
Fix HDLC-FCS transmit side
If we are not able to read more packets from the user application,
the recv/read call will return 0 and set errno = EAGAIN. In this
situation we cannot bail out but still ask the HDLC code to generate
output (sequences of flag octets). If we fail to do that, we will
transmit all-ones pattern instaed of all-flag octets.
Change-Id: Id3bc76f1956138dcd9cb7b499f7251cd94af1329
| -rw-r--r-- | src/intf_line.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/intf_line.c b/src/intf_line.c index 5994805..4c9c404 100644 --- a/src/intf_line.c +++ b/src/intf_line.c @@ -194,7 +194,7 @@ _e1_tx_hdlcfs(struct e1_ts *ts, uint8_t *buf, int len) rv, osmo_hexdump(ts->tx_buf, rv)); ts->tx_len = rv; ts->tx_ofs = 0; - } else if (rv < 0) + } else if (rv < 0 && errno != EAGAIN) return rv; } |