thermal: shorten too long mcast group name

[ 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@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index fe82022478e7f7ad20affd6c5ce4706c69205375..90a8dfa9b6e99c31fcabc0ce4ad4a037abb70f3b 100644 (file)
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -44,7 +44,7 @@
 /* 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"
 
 /* Default Thermal Governor */
 #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f2aabb6f410582439604d7a3c0f379a5cd798621..5a55be3f17a54aa2acac3ce109c412c86c652b36 100644 (file)
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -142,6 +142,7 @@ int genl_register_mc_group(struct genl_family *family,
        int err = 0;
 
        BUG_ON(grp->name[0] == '\0');
+       BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
 
        genl_lock();