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mwifiex: fix NULL pointer dereference in mwifiex_fw_dpc 

We don't need to free/unregister wiphy when
mwifiex_register_cfg80211() fails. The routine internally takes
care of it. This redundant code can cause NULL pointer dereference,
for adapter->wiphy.

Reported-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar 2013-11-14 19:10:39 -08:00 committed by John W. Linville
parent bec568ff51
commit d1af2943da
1 changed files with 1 additions and 2 deletions
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3
drivers/net/wireless/mwifiex/main.c
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@ -470,7 +470,7 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
priv = adapter->priv[MWIFIEX_BSS_ROLE_STA];
if (mwifiex_register_cfg80211(adapter)) {
dev_err(adapter->dev, "cannot register with cfg80211\n");
goto err_register_cfg80211;
goto err_init_fw;
}
rtnl_lock();
@ -489,7 +489,6 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
goto done;
err_add_intf:
err_register_cfg80211:
wiphy_unregister(adapter->wiphy);
wiphy_free(adapter->wiphy);
err_init_fw: