diff options
| author | Malcolm Priestley <tvboxspy@gmail.com> | 2013-09-23 20:30:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-05 07:17:56 -0700 |
| commit | 52020343bad0aae72e4dcd7c0f311e62e793429b (patch) | |
| tree | 1d6a20b868a85d15eaae47f318961ad4a7897d77 | |
| parent | 33d869bb2038f9397c04a6569f3ef19ac64a3b2f (diff) | |
staging: vt6656: [BUG] iwctl_siwencodeext return if device not open
commit 5e8c3d3e41b0bf241e830a1ee0752405adecc050 upstream.
Don't allow entry to iwctl_siwencodeext if device not open.
This fixes a race condition where wpa supplicant/network manager
enters the function when the device is already closed.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/vt6656/iwctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c index d0cf7d8a20e5..8872e0f84f40 100644 --- a/drivers/staging/vt6656/iwctl.c +++ b/drivers/staging/vt6656/iwctl.c @@ -1634,6 +1634,9 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info, if (pMgmt == NULL) return -EFAULT; + if (!(pDevice->flags & DEVICE_FLAGS_OPENED)) + return -ENODEV; + buf = kzalloc(sizeof(struct viawget_wpa_param), GFP_KERNEL); if (buf == NULL) return -ENOMEM; |