1 files changed, 31 insertions, 12 deletions

diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c
index 855313359370..f46c7e5ed747 100644
--- a/drivers/media/video/cx18/cx18-controls.c
+++ b/drivers/media/video/cx18/cx18-controls.c
@@ -101,16 +101,24 @@ int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
                         cx2341x_ctrl_get_menu(&cx->params, qmenu->id));
 }
 
-int cx18_s_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl)
+static int cx18_try_ctrl(struct file *file, void *fh,
+                                        struct v4l2_ext_control *vctrl)
 {
-        struct cx18_open_id *id = fh;
-        struct cx18 *cx = id->cx;
-        int ret;
+        struct v4l2_queryctrl qctrl;
+        const char **menu_items = NULL;
+        int err;
 
-        ret = v4l2_prio_check(&cx->prio, &id->prio);
-        if (ret)
-                return ret;
+        qctrl.id = vctrl->id;
+        err = cx18_queryctrl(file, fh, &qctrl);
+        if (err)
+                return err;
+        if (qctrl.type == V4L2_CTRL_TYPE_MENU)
+                menu_items = v4l2_ctrl_get_menu(qctrl.id);
+        return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
+}
 
+static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
+{
         switch (vctrl->id) {
                 /* Standard V4L2 controls */
         case V4L2_CID_BRIGHTNESS:
@@ -134,10 +142,8 @@ int cx18_s_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl)
         return 0;
 }
 
-int cx18_g_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl)
+static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
 {
-        struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
-
         switch (vctrl->id) {
                 /* Standard V4L2 controls */
         case V4L2_CID_BRIGHTNESS:
@@ -211,7 +217,7 @@ int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
                 for (i = 0; i < c->count; i++) {
                         ctrl.id = c->controls[i].id;
                         ctrl.value = c->controls[i].value;
-                        err = cx18_g_ctrl(file, fh, &ctrl);
+                        err = cx18_g_ctrl(cx, &ctrl);
                         c->controls[i].value = ctrl.value;
                         if (err) {
                                 c->error_idx = i;
@@ -243,7 +249,7 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
                 for (i = 0; i < c->count; i++) {
                         ctrl.id = c->controls[i].id;
                         ctrl.value = c->controls[i].value;
-                        err = cx18_s_ctrl(file, fh, &ctrl);
+                        err = cx18_s_ctrl(cx, &ctrl);
                         c->controls[i].value = ctrl.value;
                         if (err) {
                                 c->error_idx = i;
@@ -287,6 +293,19 @@ int cx18_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
 {
         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 
+        if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
+                int i;
+                int err = 0;
+
+                for (i = 0; i < c->count; i++) {
+                        err = cx18_try_ctrl(file, fh, &c->controls[i]);
+                        if (err) {
+                                c->error_idx = i;
+                                break;
+                        }
+                }
+                return err;
+        }
         if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
                 return cx2341x_ext_ctrls(&cx->params,
                                                 atomic_read(&cx->ana_capturing),