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| author | Johan Hovold <jhovold@gmail.com> | 2012-10-26 18:44:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-30 12:46:51 -0700 |
| commit | 8e493ca1767d4951ed1322abaa74d6edbca29918 (patch) | |
| tree | 860d7e18f5698d0c975075dc86dfd45097a859d8 /drivers/usb/serial | |
| parent | 169b245a726ad577a2b66b5c0a608f4633715342 (diff) | |
| download | linux-8e493ca1767d4951ed1322abaa74d6edbca29918.tar.gz linux-8e493ca1767d4951ed1322abaa74d6edbca29918.tar.bz2 linux-8e493ca1767d4951ed1322abaa74d6edbca29918.zip | |
USB: usb_wwan: fix bulk-urb allocation
Make sure we do not allocate urbs if we do not have a bulk endpoint.
Legacy code used incorrect assumption to test for bulk endpoints.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 61a73ad1a187..a3e9c095f0d8 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -455,9 +455,6 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port, struct usb_serial *serial = port->serial; struct urb *urb; - if (endpoint == -1) - return NULL; /* endpoint not needed */ - urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ if (urb == NULL) { dev_dbg(&serial->interface->dev, @@ -489,6 +486,9 @@ int usb_wwan_port_probe(struct usb_serial_port *port) init_usb_anchor(&portdata->delayed); for (i = 0; i < N_IN_URB; i++) { + if (!port->bulk_in_size) + break; + buffer = (u8 *)__get_free_page(GFP_KERNEL); if (!buffer) goto bail_out_error; @@ -502,8 +502,8 @@ int usb_wwan_port_probe(struct usb_serial_port *port) } for (i = 0; i < N_OUT_URB; i++) { - if (port->bulk_out_endpointAddress == -1) - continue; + if (!port->bulk_out_size) + break; buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL); if (!buffer) |