media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type

commit 169f24ca68bf0f247d111aef07af00dd3a02ae88 upstream.

There is nothing wrong with using an unknown buffer type. So
stop spamming the kernel log whenever this happens. The kernel
will just return -EINVAL to signal this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[sw0312.kim: cherry-pick from linux-3.18.y to apply CVE patch]
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Change-Id: I6d4c1415da97ddd04dbc06016cc44658c8e88478

diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index 27959ee1107aa5186f50e0fdd40ad2c1d7e58df3..d8a2c755cd8005b1dc3aa000594d25d566b705f2 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -170,8 +170,6 @@ static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __us
                return copy_from_user(&kp->fmt.sliced, &up->fmt.sliced,
                                      sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
        default:
-               printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
-                      kp->type);
                return -EINVAL;
        }
 }
@@ -214,8 +212,6 @@ static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __us
                return copy_to_user(&up->fmt.sliced, &kp->fmt.sliced,
                                    sizeof(kp->fmt.sliced)) ?  -EFAULT : 0;
        default:
-               printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
-                      kp->type);
                return -EINVAL;
        }
 }