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net: smc91x: Fix possible memory leak in smc_drv_probe() 

[ Upstream commit bca9749b1a ]

If try_toggle_control_gpio() failed in smc_drv_probe(), free_netdev(ndev)
should be called to free the ndev created earlier. Otherwise, a memleak
will occur.

Fixes: 7d2911c438 ("net: smc91x: Fix gpios for device tree based booting")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Wang Hai 2020-07-16 11:50:38 +08:00 committed by Greg Kroah-Hartman
parent a2cdb4ebd8
commit d11a27411c
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/smsc/smc91x.c
View File

@ -2274,7 +2274,7 @@ static int smc_drv_probe(struct platform_device *pdev)
ret = try_toggle_control_gpio(&pdev->dev, &lp->power_gpio,
"power", 0, 0, 100);
if (ret)
return ret;
goto out_free_netdev;
/*
* Optional reset GPIO configured? Minimum 100 ns reset needed
@ -2283,7 +2283,7 @@ static int smc_drv_probe(struct platform_device *pdev)
ret = try_toggle_control_gpio(&pdev->dev, &lp->reset_gpio,
"reset", 0, 0, 100);
if (ret)
return ret;
goto out_free_netdev;
/*
* Need to wait for optional EEPROM to load, max 750 us according