summaryrefslogtreecommitdiff
path: root/drivers/staging
diff options
context:
space:
mode:
authorJohan Hovold <johan@kernel.org>2019-12-10 12:47:50 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-10 13:22:21 +0100
commit74ca34118a0e05793935d804ccffcedd6eb56596 (patch)
tree53c3197065c5450ba0e4893a99f1111793516e01 /drivers/staging
parented9ed5a89acba51b82bdff61144d4e4a4245ec8a (diff)
staging: rtl8188eu: fix interface sanity check
Make sure to use the current alternate setting when verifying the interface descriptors to avoid binding to an invalid interface. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: c2478d39076b ("staging: r8188eu: Add files for new driver - part 20") Cc: stable <stable@vger.kernel.org> # 3.12 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191210114751.5119-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/rtl8188eu/os_dep/usb_intf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index 4fac9dca798e..a7cac0719b8b 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -70,7 +70,7 @@ static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
phost_conf = pusbd->actconfig;
pconf_desc = &phost_conf->desc;
- phost_iface = &usb_intf->altsetting[0];
+ phost_iface = usb_intf->cur_altsetting;
piface_desc = &phost_iface->desc;
pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces;