V4L/DVB (8083): videodev: zero fields for ENCODER_CMD and VIDIOC_G_SLICED_VBI_CAP

This avoids the need of memsets in the ivtv/cx18 drivers.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 16 insertions, 11 deletions

diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 9c539eb33811..0d56305c153e 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -1616,26 +1616,26 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
         }
         case VIDIOC_ENCODER_CMD:
         {
-                struct v4l2_encoder_cmd *p=arg;
+                struct v4l2_encoder_cmd *p = arg;
 
                 if (!vfd->vidioc_encoder_cmd)
                         break;
-                ret=vfd->vidioc_encoder_cmd(file, fh, p);
+                memset(&p->raw, 0, sizeof(p->raw));
+                ret = vfd->vidioc_encoder_cmd(file, fh, p);
                 if (!ret)
-                        dbgarg (cmd, "cmd=%d, flags=%d\n",
-                                        p->cmd,p->flags);
+                        dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
                 break;
         }
         case VIDIOC_TRY_ENCODER_CMD:
         {
-                struct v4l2_encoder_cmd *p=arg;
+                struct v4l2_encoder_cmd *p = arg;
 
                 if (!vfd->vidioc_try_encoder_cmd)
                         break;
-                ret=vfd->vidioc_try_encoder_cmd(file, fh, p);
+                memset(&p->raw, 0, sizeof(p->raw));
+                ret = vfd->vidioc_try_encoder_cmd(file, fh, p);
                 if (!ret)
-                        dbgarg (cmd, "cmd=%d, flags=%d\n",
-                                        p->cmd,p->flags);
+                        dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
                 break;
         }
         case VIDIOC_G_PARM:
@@ -1738,12 +1738,17 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
         }
         case VIDIOC_G_SLICED_VBI_CAP:
         {
-                struct v4l2_sliced_vbi_cap *p=arg;
+                struct v4l2_sliced_vbi_cap *p = arg;
+                __u32 type = p->type;
+
                 if (!vfd->vidioc_g_sliced_vbi_cap)
                         break;
-                ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
+                memset(p, 0, sizeof(*p));
+                p->type = type;
+                ret = vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
                 if (!ret)
-                        dbgarg (cmd, "service_set=%d\n", p->service_set);
+                        dbgarg(cmd, "type=%d, service_set=%d\n",
+                                        p->type, p->service_set);
                 break;
         }
         case VIDIOC_LOG_STATUS: