merge: http://linuxtv.org/hg/~hgoede/gspca/

From: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 17 insertions, 8 deletions

diff --git a/linux/drivers/media/video/v4l2-ioctl.c b/linux/drivers/media/video/v4l2-ioctl.c
index 80c94dc5a..d40c7bb2d 100644
--- a/linux/drivers/media/video/v4l2-ioctl.c
+++ b/linux/drivers/media/video/v4l2-ioctl.c
@@ -514,11 +514,12 @@ static inline void v4l_print_ext_ctrls(unsigned int cmd,
 	dbgarg(cmd, "");
 	printk(KERN_CONT "class=0x%x", c->ctrl_class);
 	for (i = 0; i < c->count; i++) {
-		if (show_vals)
+		if (show_vals && !c->controls[i].size)
 			printk(KERN_CONT " id/val=0x%x/0x%x",
 				c->controls[i].id, c->controls[i].value);
 		else
-			printk(KERN_CONT " id=0x%x", c->controls[i].id);
+			printk(KERN_CONT " id=0x%x,size=%u",
+				c->controls[i].id, c->controls[i].size);
 	}
 	printk(KERN_CONT "\n");
 };
@@ -529,10 +530,9 @@ static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
 
 	/* zero the reserved fields */
 	c->reserved[0] = c->reserved[1] = 0;
-	for (i = 0; i < c->count; i++) {
+	for (i = 0; i < c->count; i++)
 		c->controls[i].reserved2[0] = 0;
-		c->controls[i].reserved2[1] = 0;
-	}
+
 	/* V4L2_CID_PRIVATE_BASE cannot be used as control class
 	   when using extended controls.
 	   Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
@@ -1088,8 +1088,10 @@ static long __video_do_ioctl(struct file *file,
 		/* Calls the specific handler */
 		if (ops->vidioc_g_std)
 			ret = ops->vidioc_g_std(file, fh, id);
-		else
+		else if (vfd->current_norm)
 			*id = vfd->current_norm;
+		else
+			ret = -EINVAL;
 
 		if (!ret)
 			dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id);
@@ -1560,12 +1562,19 @@ static long __video_do_ioctl(struct file *file,
 				break;
 			ret = ops->vidioc_g_parm(file, fh, p);
 		} else {
+			v4l2_std_id std = vfd->current_norm;
+
 			if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 				return -EINVAL;
 
-			v4l2_video_std_frame_period(vfd->current_norm,
-						    &p->parm.capture.timeperframe);
 			ret = 0;
+			if (ops->vidioc_g_std)
+				ret = ops->vidioc_g_std(file, fh, &std);
+			else if (std == 0)
+				ret = -EINVAL;
+			if (ret == 0)
+				v4l2_video_std_frame_period(std,
+						    &p->parm.capture.timeperframe);
 		}
 
 		dbgarg(cmd, "type=%d\n", p->type);