[PATCH] osmo-bts[master]: sysmo/tch.c: Clean up use of empty buffer

[Pau Espin Pedrol]

Review at  https://gerrit.osmocom.org/3055

sysmo/tch.c: Clean up use of empty buffer

Make code easier to read and avoid reading first byte of the buffer if size is 0.

Change-Id: I5ecfc4df5a3fcad3d3ad50bf3dd3db65b694481a
---
M src/osmo-bts-sysmo/tch.c
1 file changed, 4 insertions(+), 3 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/55/3055/1

diff --git a/src/osmo-bts-sysmo/tch.c b/src/osmo-bts-sysmo/tch.c
index 475652e..a12b1a7 100644
--- a/src/osmo-bts-sysmo/tch.c
+++ b/src/osmo-bts-sysmo/tch.c
@@ -506,9 +506,7 @@
 {
 	GsmL1_Prim_t *l1p = msgb_l1prim(l1p_msg);
 	GsmL1_PhDataInd_t *data_ind = &l1p->u.phDataInd;
-	uint8_t payload_type = data_ind->msgUnitParam.u8Buffer[0];
-	uint8_t *payload = data_ind->msgUnitParam.u8Buffer + 1;
-	uint8_t payload_len, sid_first[9] = { 0 };
+	uint8_t *payload, payload_type, payload_len, sid_first[9] = { 0 };
 	struct msgb *rmsg = NULL;
 	struct gsm_lchan *lchan = &trx->ts[L1SAP_CHAN2TS(chan_nr)].lchan[l1sap_chan2ss(chan_nr)];
 
@@ -520,6 +518,9 @@
 			chan_nr);
 		return -EINVAL;
 	}
+
+	payload_type = data_ind->msgUnitParam.u8Buffer[0];
+	payload = data_ind->msgUnitParam.u8Buffer + 1;
 	payload_len = data_ind->msgUnitParam.u8Size - 1;
 
 	switch (payload_type) {

-- 
To view, visit https://gerrit.osmocom.org/3055
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I5ecfc4df5a3fcad3d3ad50bf3dd3db65b694481a
Gerrit-PatchSet: 1
Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>