[sr-dev] git:4.2:e3197e00: debugger: fix issue #463

[Stefan Mititelu]

Module: kamailio
Branch: 4.2
Commit: e3197e00458bae2556d38385a45c6132a0393f7a
URL: https://github.com/kamailio/kamailio/commit/e3197e00458bae2556d38385a45c6132a0393f7a

Author: Stefan Mititelu <stefan.mititelu at 1and1.ro>
Committer: Stefan Mititelu <stefan.mititelu at 1and1.ro>
Date: 2016-01-07T11:49:25+02:00

debugger: fix issue #463

Don't shm_malloc() while the lock is taken.

(cherry picked from commit 3668618369a8a1db8cb3410c0a7f50ce74150cd2)

---

Modified: modules/debugger/debugger_api.c

---

Diff:  https://github.com/kamailio/kamailio/commit/e3197e00458bae2556d38385a45c6132a0393f7a.diff
Patch: https://github.com/kamailio/kamailio/commit/e3197e00458bae2556d38385a45c6132a0393f7a.patch

---

diff --git a/modules/debugger/debugger_api.c b/modules/debugger/debugger_api.c
index 0f5f65d..19d13c1 100644
--- a/modules/debugger/debugger_api.c
+++ b/modules/debugger/debugger_api.c
@@ -1178,15 +1178,14 @@ int dbg_set_mod_debug_level(char *mname, int mnlen, int *mlevel)
 		itp = it;
 		it = it->next;
 	}
+	lock_release(&_dbg_mod_table[idx].lock);
 	/* not found - add */
 	if(mlevel==NULL) {
-		lock_release(&_dbg_mod_table[idx].lock);
 		return 0;
 	}
 	itn = (dbg_mod_level_t*)shm_malloc(sizeof(dbg_mod_level_t) + (mnlen+1)*sizeof(char));
 	if(itn==NULL) {
 		LM_ERR("no more shm\n");
-		lock_release(&_dbg_mod_table[idx].lock);
 		return -1;
 	}
 	memset(itn, 0, sizeof(dbg_mod_level_t) + (mnlen+1)*sizeof(char));
@@ -1197,6 +1196,7 @@ int dbg_set_mod_debug_level(char *mname, int mnlen, int *mlevel)
 	strncpy(itn->name.s, mname, mnlen);
 	itn->name.s[itn->name.len] = '\0';
 
+	lock_get(&_dbg_mod_table[idx].lock);
 	if(itp==NULL) {
 		itn->next = _dbg_mod_table[idx].first;
 		_dbg_mod_table[idx].first = itn;