[media] m920x: factor out a m920x_write_seq() function

This is in preparation for the vp7049 frontend attach function which is
going to set a sequence of registers as well.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 19 insertions, 9 deletions

diff --git a/drivers/media/usb/dvb-usb/m920x.c b/drivers/media/usb/dvb-usb/m920x.c
index 433696d14f4b..23416fbb9f8c 100644
--- a/drivers/media/usb/dvb-usb/m920x.c
+++ b/drivers/media/usb/dvb-usb/m920x.c
@@ -63,6 +63,21 @@ static inline int m920x_write(struct usb_device *udev, u8 request,
         return ret;
 }
 
+static inline int m920x_write_seq(struct usb_device *udev, u8 request,
+                                  struct m920x_inits *seq)
+{
+        int ret;
+        while (seq->address) {
+                ret = m920x_write(udev, request, seq->data, seq->address);
+                if (ret != 0)
+                        return ret;
+
+                seq++;
+        }
+
+        return ret;
+}
+
 static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq)
 {
         int ret = 0, i, epi, flags = 0;
@@ -71,15 +86,10 @@ static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq)
         /* Remote controller init. */
         if (d->props.rc.legacy.rc_query) {
                 deb("Initialising remote control\n");
-                while (rc_seq->address) {
-                        if ((ret = m920x_write(d->udev, M9206_CORE,
-                                               rc_seq->data,
-                                               rc_seq->address)) != 0) {
-                                deb("Initialising remote control failed\n");
-                                return ret;
-                        }
-
-                        rc_seq++;
+                ret = m920x_write_seq(d->udev, M9206_CORE, rc_seq);
+                if (ret != 0) {
+                        deb("Initialising remote control failed\n");
+                        return ret;
                 }
 
                 deb("Initialising remote control success\n");