[146/200] misc: Fix allocation borrowed by vhost_net

Greg KH
2010-07-01T21:36:01Z

2.6.34-stable review patch. If anyone has any objections, please let me know.

------------------

From: Alan Cox <alan@linux.intel.com>

commit 79907d89c397b8bc2e05b347ec94e928ea919d33 upstream.

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.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/vhost/net.c | 2 +-
include/linux/miscdevice.h | 7 ++++++-
2 files changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -637,7 +637,7 @@ const static struct file_operations vhos
};

static struct miscdevice vhost_net_misc = {
- VHOST_NET_MINOR,
+ MISC_DYNAMIC_MINOR,
"vhost-net",
&vhost_net_fops,
};
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -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 MISC_DYNAMIC_MINOR 255

struct device;