[Patch] fix parsing of statistics type-attribute

[Martin Peschke <mp3@de.ibm.com>]

Without this fix the the statistics user interface accepted, for example:

	echo name=my_stats type=utilisa > definition

while it should only accept:

	echo name=my_stats type=utilisation > definition


Signed-off-by: Martin Peschke <mp3@de.ibm.com>
---

 statistic.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/lib/statistic.c
===================================================================
--- linux.orig/lib/statistic.c
+++ linux/lib/statistic.c
@@ -506,7 +506,8 @@ static int statistic_parse_match(struct 
 		len = (args[0].to - args[0].from);
 		for (type = 0; type < STAT_NONE; type++) {
 			disc = &statistic_discs[type];
-			if (unlikely(strncmp(disc->name, args[0].from, len)))
+			if (strlen(disc->name) != len ||
+			    strncmp(disc->name, args[0].from, len))
 				continue;
 			return statistic_parse_single(stat, info, def, type);
 		}