wifi: ipw2200: fix memory leak in ipw_wdev_init()

[ Upstream commit 9fe21dc626117fb44a8eb393713a86a620128ce3 ]

In the error path of ipw_wdev_init(), exception value is returned, and
the memory applied for in the function is not released. Also the memory
is not released in ipw_pci_probe(). As a result, memory leakage occurs.
So memory release needs to be added to the error path of ipw_wdev_init().

Fixes: a3caa99e6c68 ("libipw: initiate cfg80211 API conversion (v2)")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221209012422.182669-1-shaozhengchao@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index df28e4a05e1405af35ed4503d1bffcaf6b6c67dc..bb728fb24b8a4030ead2f352b3d4c02b027632d3 100644 (file)
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -11400,9 +11400,14 @@ static int ipw_wdev_init(struct net_device *dev)
        set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
 
        /* With that information in place, we can now register the wiphy... */
-       if (wiphy_register(wdev->wiphy))
-               rc = -EIO;
+       rc = wiphy_register(wdev->wiphy);
+       if (rc)
+               goto out;
+
+       return 0;
 out:
+       kfree(priv->ieee->a_band.channels);
+       kfree(priv->ieee->bg_band.channels);
        return rc;
 }