can: janz-ican3: fix uninitialized variable warnings

Analysis of the code shows that the struct ican3_msg variable cannot be
used uninitialized. Error conditions are checked and the loop terminates
before calling the ican3_handle_message() function with an uninitialized
value.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index e24e6690d672bfb9f5b2315d2927c1fd8e9b89bd..07f0ba03cd59e981078320a20424d7f583260db2 100644 (file)
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1322,7 +1322,7 @@ static int ican3_napi(struct napi_struct *napi, int budget)
 
        /* process all communication messages */
        while (true) {
-               struct ican3_msg msg;
+               struct ican3_msg uninitialized_var(msg);
                ret = ican3_recv_msg(mod, &msg);
                if (ret)
                        break;