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silent_call: check return value of trans_alloc() against NULL 

We're checking the result of trans_alloc() 6 out of 7 times, so check
it in gsm_silent_call_start() too, for the sake of consistency.

Change-Id: Ie989cd8146d66d9531cf3f3d84f46a2c6fcc2e5c
Fixes: CID#322140
This commit is contained in:
Vadim Yanitskiy 2023-12-12 22:34:20 +07:00
parent c9801ed14a
commit 2984d13e03
1 changed files with 5 additions and 1 deletions
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6
src/libmsc/silent_call.c
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@ -140,7 +140,11 @@ int gsm_silent_call_start(struct vlr_subscr *vsub,
struct vty *vty)
{
struct gsm_network *net = vsub->vlr->user_ctx;
struct gsm_trans *trans = trans_alloc(net, vsub, TRANS_SILENT_CALL, 0, 0);
struct gsm_trans *trans;
trans = trans_alloc(net, vsub, TRANS_SILENT_CALL, 0, 0);
if (trans == NULL)
return -ENODEV;
trans->silent_call.ct = *ct;
if (traffic_dst_ip) {