Merge tag 'v3.10.103' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / serial / mos7720.c

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index f27c621a9297f3c896b84c9ea700d6285ef6b94f..0f16bf6ea71c1707fa6ec5d64bd9242eeac9cdfa 100644 (file)
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -90,6 +90,7 @@ struct urbtracker {
        struct list_head        urblist_entry;
        struct kref             ref_count;
        struct urb              *urb;
+       struct usb_ctrlrequest  *setup;
 };
 
 enum mos7715_pp_modes {
@@ -271,6 +272,7 @@ static void destroy_urbtracker(struct kref *kref)
        struct mos7715_parport *mos_parport = urbtrack->mos_parport;
 
        usb_free_urb(urbtrack->urb);
+       kfree(urbtrack->setup);
        kfree(urbtrack);
        kref_put(&mos_parport->ref_count, destroy_mos_parport);
 }
@@ -355,7 +357,6 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
        struct urbtracker *urbtrack;
        int ret_val;
        unsigned long flags;
-       struct usb_ctrlrequest setup;
        struct usb_serial *serial = mos_parport->serial;
        struct usb_device *usbdev = serial->dev;
 
@@ -373,14 +374,20 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
                kfree(urbtrack);
                return -ENOMEM;
        }
-       setup.bRequestType = (__u8)0x40;
-       setup.bRequest = (__u8)0x0e;
-       setup.wValue = get_reg_value(reg, dummy);
-       setup.wIndex = get_reg_index(reg);
-       setup.wLength = 0;
+       urbtrack->setup = kmalloc(sizeof(*urbtrack->setup), GFP_ATOMIC);
+       if (!urbtrack->setup) {
+               usb_free_urb(urbtrack->urb);
+               kfree(urbtrack);
+               return -ENOMEM;
+       }
+       urbtrack->setup->bRequestType = (__u8)0x40;
+       urbtrack->setup->bRequest = (__u8)0x0e;
+       urbtrack->setup->wValue = cpu_to_le16(get_reg_value(reg, dummy));
+       urbtrack->setup->wIndex = cpu_to_le16(get_reg_index(reg));
+       urbtrack->setup->wLength = 0;
        usb_fill_control_urb(urbtrack->urb, usbdev,
                             usb_sndctrlpipe(usbdev, 0),
-                            (unsigned char *)&setup,
+                            (unsigned char *)urbtrack->setup,
                             NULL, 0, async_complete, urbtrack);
        kref_init(&urbtrack->ref_count);
        INIT_LIST_HEAD(&urbtrack->urblist_entry);