[PATCH 5.4 048/138] net: smc91x: Fix possible memory leak in smc_drv_probe()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Wang Hai <wanghai38@xxxxxxxxxx>

[ Upstream commit bca9749b1aa23d964d3ab930938af66dbf887f15 ]

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: 7d2911c43815 ("net: smc91x: Fix gpios for device tree based booting")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/smsc/smc91x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 3a6761131f4c2..2248d26746124 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -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
-- 
2.25.1






[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux