[media] dw2102: Use kmemdup rather than duplicating its implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c
index f103ec1..41cff37 100644 (file)
--- a/drivers/media/dvb/dvb-usb/dw2102.c
+++ b/drivers/media/dvb/dvb-usb/dw2102.c
@@ -1859,12 +1859,11 @@ static struct dvb_usb_device_properties su3000_properties = {
 static int dw2102_probe(struct usb_interface *intf,
                const struct usb_device_id *id)
 {
-       p1100 = kzalloc(sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
+       p1100 = kmemdup(&s6x0_properties,
+                       sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
        if (!p1100)
                return -ENOMEM;
        /* copy default structure */
-       memcpy(p1100, &s6x0_properties,
-                       sizeof(struct dvb_usb_device_properties));
        /* fill only different fields */
        p1100->firmware = "dvb-usb-p1100.fw";
        p1100->devices[0] = d1100;
@@ -1872,13 +1871,12 @@ static int dw2102_probe(struct usb_interface *intf,
        p1100->rc.legacy.rc_map_size = ARRAY_SIZE(rc_map_tbs_table);
        p1100->adapter->fe[0].frontend_attach = stv0288_frontend_attach;
 
-       s660 = kzalloc(sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
+       s660 = kmemdup(&s6x0_properties,
+                      sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
        if (!s660) {
                kfree(p1100);
                return -ENOMEM;
        }
-       memcpy(s660, &s6x0_properties,
-                       sizeof(struct dvb_usb_device_properties));
        s660->firmware = "dvb-usb-s660.fw";
        s660->num_device_descs = 3;
        s660->devices[0] = d660;
@@ -1886,14 +1884,13 @@ static int dw2102_probe(struct usb_interface *intf,
        s660->devices[2] = d480_2;
        s660->adapter->fe[0].frontend_attach = ds3000_frontend_attach;
 
-       p7500 = kzalloc(sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
+       p7500 = kmemdup(&s6x0_properties,
+                       sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
        if (!p7500) {
                kfree(p1100);
                kfree(s660);
                return -ENOMEM;
        }
-       memcpy(p7500, &s6x0_properties,
-                       sizeof(struct dvb_usb_device_properties));
        p7500->firmware = "dvb-usb-p7500.fw";
        p7500->devices[0] = d7500;
        p7500->rc.legacy.rc_map_table = rc_map_tbs_table;