diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2020-09-02 14:56:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-02 15:40:18 -0700 |
| commit | eb0f3bc463d59d86402f19c59aa44e82dc3fab6d (patch) | |
| tree | 3c53f95691ab09dfee0bb8d071b9ecb9c66dbe13 | |
| parent | 1996cf46e4673a25ef2478eb266714f409a98221 (diff) | |
net: gemini: Fix another missing clk_disable_unprepare() in probe
We recently added some calls to clk_disable_unprepare() but we missed
the last error path if register_netdev() fails.
I made a couple cleanups so we avoid mistakes like this in the future.
First I reversed the "if (!ret)" condition and pulled the code in one
indent level. Also, the "port->netdev = NULL;" is not required because
"port" isn't used again outside this function so I deleted that line.
Fixes: 4d5ae32f5e1e ("net: ethernet: Add a driver for Gemini gigabit ethernet")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/cortina/gemini.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c index 62e271aea4a5..ffec0f3dd957 100644 --- a/drivers/net/ethernet/cortina/gemini.c +++ b/drivers/net/ethernet/cortina/gemini.c @@ -2446,8 +2446,8 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev) port->reset = devm_reset_control_get_exclusive(dev, NULL); if (IS_ERR(port->reset)) { dev_err(dev, "no reset\n"); - clk_disable_unprepare(port->pclk); - return PTR_ERR(port->reset); + ret = PTR_ERR(port->reset); + goto unprepare; } reset_control_reset(port->reset); usleep_range(100, 500); @@ -2502,25 +2502,25 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev) IRQF_SHARED, port_names[port->id], port); - if (ret) { - clk_disable_unprepare(port->pclk); - return ret; - } + if (ret) + goto unprepare; ret = register_netdev(netdev); - if (!ret) { + if (ret) + goto unprepare; + + netdev_info(netdev, + "irq %d, DMA @ 0x%pap, GMAC @ 0x%pap\n", + port->irq, &dmares->start, + &gmacres->start); + ret = gmac_setup_phy(netdev); + if (ret) netdev_info(netdev, - "irq %d, DMA @ 0x%pap, GMAC @ 0x%pap\n", - port->irq, &dmares->start, - &gmacres->start); - ret = gmac_setup_phy(netdev); - if (ret) - netdev_info(netdev, - "PHY init failed, deferring to ifup time\n"); - return 0; - } + "PHY init failed, deferring to ifup time\n"); + return 0; - port->netdev = NULL; +unprepare: + clk_disable_unprepare(port->pclk); return ret; } |