From 169f24ca68bf0f247d111aef07af00dd3a02ae88 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Wed, 24 Jan 2018 09:33:57 -0500
Subject: [PATCH] media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
Git-commit: 169f24ca68bf0f247d111aef07af00dd3a02ae88
Patch-mainline: v4.16-rc1
References: CVE-2017-13166,bsc#1072865

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>
Cc: <stable@vger.kernel.org>      # for v4.15 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/media/v4l2-core/v4l2-compat-ioctl32.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -176,8 +176,6 @@ static int __get_v4l2_format32(struct v4
 		return copy_from_user(&kp->fmt.meta, &up->fmt.meta,
 				      sizeof(kp->fmt.meta)) ? -EFAULT : 0;
 	default:
-		pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
-			kp->type);
 		return -EINVAL;
 	}
 }
@@ -230,8 +228,6 @@ static int __put_v4l2_format32(struct v4
 		return copy_to_user(&up->fmt.meta, &kp->fmt.meta,
 				    sizeof(kp->fmt.meta)) ? -EFAULT : 0;
 	default:
-		pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
-			kp->type);
 		return -EINVAL;
 	}
 }