diff options
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/serial/option.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5e8bf1bc1e5..a8126988efe 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -247,10 +247,10 @@ static int debug; struct option_port_private { /* Input endpoints and buffer for this port */ struct urb *in_urbs[N_IN_URB]; - char in_buffer[N_IN_URB][IN_BUFLEN]; + u8 *in_buffer[N_IN_URB]; /* Output endpoints and buffer for this port */ struct urb *out_urbs[N_OUT_URB]; - char out_buffer[N_OUT_URB][OUT_BUFLEN]; + u8 *out_buffer[N_OUT_URB]; unsigned long out_busy; /* Bit vector of URBs in use */ /* Settings for the port */ @@ -737,9 +737,10 @@ static int option_send_setup(struct usb_serial_port *port) static int option_startup(struct usb_serial *serial) { - int i, err; + int i, j, err; struct usb_serial_port *port; struct option_port_private *portdata; + u8 *buffer; dbg("%s", __FUNCTION__); @@ -753,6 +754,20 @@ static int option_startup(struct usb_serial *serial) return (1); } + for (j = 0; j < N_IN_URB; j++) { + buffer = (u8 *)__get_free_page(GFP_KERNEL); + if (!buffer) + goto bail_out_error; + portdata->in_buffer[j] = buffer; + } + + for (j = 0; j < N_OUT_URB; j++) { + buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL); + if (!buffer) + goto bail_out_error2; + portdata->out_buffer[j] = buffer; + } + usb_set_serial_port_data(port, portdata); if (! port->interrupt_in_urb) @@ -766,6 +781,16 @@ static int option_startup(struct usb_serial *serial) option_setup_urbs(serial); return (0); + +bail_out_error2: + for (j = 0; j < N_OUT_URB; j++) + kfree(portdata->out_buffer[j]); +bail_out_error: + for (j = 0; j < N_IN_URB; j++) + if (portdata->in_buffer[j]) + free_page((unsigned long)portdata->in_buffer[j]); + kfree(portdata); + return 1; } static void option_shutdown(struct usb_serial *serial) @@ -794,12 +819,14 @@ static void option_shutdown(struct usb_serial *serial) for (j = 0; j < N_IN_URB; j++) { if (portdata->in_urbs[j]) { usb_free_urb(portdata->in_urbs[j]); + free_page((unsigned long)portdata->in_buffer[j]); portdata->in_urbs[j] = NULL; } } for (j = 0; j < N_OUT_URB; j++) { if (portdata->out_urbs[j]) { usb_free_urb(portdata->out_urbs[j]); + kfree(portdata->out_buffer[j]); portdata->out_urbs[j] = NULL; } } |