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misc: Fix allocation 'borrowed' by vhost_net 

10, 233 is allocated officially to /dev/kmview which is shipping in
Ubuntu and Debian distributions.  vhost_net seem to have borrowed it
without making a proper request and this causes regressions in the other
distributions.

vhost_net can use a dynamic minor so use that instead.  Also update the
file with a comment to try and avoid future misunderstandings.

cc: stable@kernel.org
Signed-off-by: Alan Cox <device@lanana.org>
[ We should have caught this before 2.6.34 got released.  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2010-06-09 09:39:49 +01:00 committed by Linus Torvalds
parent 84f7586eda
commit 79907d89c3
2 changed files with 7 additions and 2 deletions
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2
drivers/vhost/net.c
View File

@ -637,7 +637,7 @@ const static struct file_operations vhost_net_fops = {
};
static struct miscdevice vhost_net_misc = {
VHOST_NET_MINOR,
MISC_DYNAMIC_MINOR,
"vhost-net",
&vhost_net_fops,
};

7
include/linux/miscdevice.h
View File

@ -3,6 +3,12 @@
#include <linux/module.h>
#include <linux/major.h>
/*
* These allocations are managed by device@lanana.org. If you use an
* entry that is not in assigned your entry may well be moved and
* reassigned, or set dynamic if a fixed value is not justified.
*/
#define PSMOUSE_MINOR 1
#define MS_BUSMOUSE_MINOR 2
#define ATIXL_BUSMOUSE_MINOR 3
@ -30,7 +36,6 @@
#define HPET_MINOR 228
#define FUSE_MINOR 229
#define KVM_MINOR 232
#define VHOST_NET_MINOR 233
#define BTRFS_MINOR 234
#define AUTOFS_MINOR 235
#define MISC_DYNAMIC_MINOR 255