[BlueZ v2 20/20] main: Simplify variable assignment

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Error: RESOURCE_LEAK (CWE-772): [#def39] [important]
bluez-5.75/src/main.c:425:2: alloc_fn: Storage is returned from allocation function "g_key_file_get_string".
bluez-5.75/src/main.c:425:2: var_assign: Assigning: "tmp" = storage returned from "g_key_file_get_string(config, group, key, &err)".
bluez-5.75/src/main.c:433:2: noescape: Assuming resource "tmp" is not freed or pointed-to as ellipsis argument to "btd_debug".
bluez-5.75/src/main.c:440:2: leaked_storage: Variable "tmp" going out of scope leaks the storage it points to.
438|	}
439|
440|->	return true;
441|   }
442|
---
 src/main.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/main.c b/src/main.c
index ac840d684f6d..a31740179941 100644
--- a/src/main.c
+++ b/src/main.c
@@ -420,9 +420,10 @@ static bool parse_config_string(GKeyFile *config, const char *group,
 					const char *key, char **val)
 {
 	GError *err = NULL;
-	char *tmp;
 
-	tmp = g_key_file_get_string(config, group, key, &err);
+	g_return_val_if_fail(val, false);
+
+	*val = g_key_file_get_string(config, group, key, &err);
 	if (err) {
 		if (err->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND)
 			DBG("%s", err->message);
@@ -430,12 +431,7 @@ static bool parse_config_string(GKeyFile *config, const char *group,
 		return false;
 	}
 
-	DBG("%s.%s = %s", group, key, tmp);
-
-	if (val) {
-		g_free(*val);
-		*val = tmp;
-	}
+	DBG("%s.%s = %s", group, key, *val);
 
 	return true;
 }
-- 
2.44.0





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