[PATCH] shared/gatt: Fix NULL pointer dereference

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From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>

We go to fail if (!op) making NULL dereference in discovery_op_free().
---
 src/shared/gatt-client.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/shared/gatt-client.c b/src/shared/gatt-client.c
index 463de3b..96b5f1f 100644
--- a/src/shared/gatt-client.c
+++ b/src/shared/gatt-client.c
@@ -1101,11 +1101,12 @@ static void process_service_changed(struct bt_gatt_client *client,
 		return;
 	}
 
+	discovery_op_free(op);
+
 fail:
 	util_debug(client->debug_callback, client->debug_data,
 					"Failed to initiate service discovery"
 					" after Service Changed");
-	discovery_op_free(op);
 }
 
 static void service_changed_cb(uint16_t value_handle, const uint8_t *value,
-- 
2.1.0

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