From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: Wolfgang Grandegger <wg@grandegger.com>,
Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <garsilva@embeddedor.com>
Subject: [PATCH] net: can: dev: remove unused code in can_restart
Date: Fri, 20 Oct 2017 22:36:52 -0500 [thread overview]
Message-ID: <20171021033652.GA28755@embeddedor.com> (raw)
Value assigned to variable err is overwritten at line
562: err = priv->do_set_mode(dev, CAN_MODE_START); before
it can be used.
Also, notice that this code has been there since 2014.
Addresses-Coverity-ID: 1227031
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
This code was tested by compilation only.
drivers/net/can/dev.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 365a8cc..064d0f6 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -543,10 +543,9 @@ static void can_restart(struct net_device *dev)
/* send restart message upstream */
skb = alloc_can_err_skb(dev, &cf);
- if (skb == NULL) {
- err = -ENOMEM;
+ if (!skb)
goto restart;
- }
+
cf->can_id |= CAN_ERR_RESTARTED;
netif_rx(skb);
--
2.7.4
reply other threads:[~2017-10-21 3:36 UTC|newest]
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