linux-kernel - [ 50/68] thermal: shorten too long mcast group name

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Message-Id: <20130402221335.774500988@linuxfoundation.org>
Date:	Tue,  2 Apr 2013 15:13:39 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Masatake YAMATO <yamato@...hat.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [ 50/68] thermal: shorten too long mcast group name

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

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


From: Masatake YAMATO <yamato@...hat.com>

[ Upstream commits 73214f5d9f33b79918b1f7babddd5c8af28dd23d
  and f1e79e208076ffe7bad97158275f1c572c04f5c7, the latter
  adds an assertion to genetlink to prevent this from happening
  again in the future. ]

The original name is too long.

Signed-off-by: Masatake YAMATO <yamato@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/thermal.h |    2 +-
 net/netlink/genetlink.c |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -108,7 +108,7 @@ struct thermal_zone_device {
 /* Adding event notification support elements */
 #define THERMAL_GENL_FAMILY_NAME                "thermal_event"
 #define THERMAL_GENL_VERSION                    0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_group"
+#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_grp"
 
 enum events {
 	THERMAL_AUX0,
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -142,6 +142,7 @@ int genl_register_mc_group(struct genl_f
 	int err = 0;
 
 	BUG_ON(grp->name[0] == '\0');
+	BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
 
 	genl_lock();
 


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