diff options
| author |   Colin Ian King <colin.king@canonical.com> | 2019-02-04 15:18:43 +0000 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-07 13:33:54 +0100 |
| commit | 5e767cca2964d6225ca6eebe2efade6e0fe99557 (patch) | |
| tree | d679cff3c7639c0be730ef605cd2e92bb8afb7f5 /drivers/staging/rtl8192u/r8192U_core.c | |
| parent | staging: sm750fb: Rename setDisplayControl to set_display_control - style (diff) | |
| download | linux-dev-5e767cca2964d6225ca6eebe2efade6e0fe99557.tar.xz linux-dev-5e767cca2964d6225ca6eebe2efade6e0fe99557.zip | |
staging: rtl8192u: remove redundant nul check on pointer dev
There is a null check on pointer dev which implies it may be null, however
dev can never be null as it is set in rtl8192_usb_probe via the call
to usb_set_intfdata.
Detected by CoverityScan, CID#143078 ("Dereference after null check")
Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/staging/rtl8192u/r8192U_core.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 0ac0bbf7d923..f1eaab337dca 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -4957,20 +4957,18 @@ static void rtl8192_usb_disconnect(struct usb_interface *intf) struct net_device *dev = usb_get_intfdata(intf); struct r8192_priv *priv = ieee80211_priv(dev); - if (dev) { - unregister_netdev(dev); - - RT_TRACE(COMP_DOWN, - "=============>wlan driver to be removed\n"); - rtl8192_proc_remove_one(dev); - - rtl8192_down(dev); - kfree(priv->pFirmware); - priv->pFirmware = NULL; - rtl8192_usb_deleteendpoints(dev); - usleep_range(10000, 11000); - } + unregister_netdev(dev); + + RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); + rtl8192_proc_remove_one(dev); + + rtl8192_down(dev); + kfree(priv->pFirmware); + priv->pFirmware = NULL; + rtl8192_usb_deleteendpoints(dev); + usleep_range(10000, 11000); free_ieee80211(dev); + RT_TRACE(COMP_DOWN, "wlan driver removed\n"); } |