[PATCH] rxrpc: rxkad: replace if (cond) BUG() with BUG_ON()

Fix the following coccicheck warnings:

./net/rxrpc/rxkad.c:1140:2-5: WARNING: Use BUG_ON instead of if
condition followed by BUG.

Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
---
 net/rxrpc/rxkad.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index e2e9e9b..bfa3d9a 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c

@@ -1135,9 +1135,8 @@ static void rxkad_decrypt_response(struct rxrpc_connection *conn,
 	       ntohl(session_key->n[0]), ntohl(session_key->n[1]));

 	mutex_lock(&rxkad_ci_mutex);
-	if (crypto_sync_skcipher_setkey(rxkad_ci, session_key->x,
-					sizeof(*session_key)) < 0)
-		BUG();
+	BUG_ON(crypto_sync_skcipher_setkey(rxkad_ci, session_key->x,
+					sizeof(*session_key)) < 0);