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yaml --- r: 282985 b: refs/heads/master c: d50f2ab h: refs/heads/master i: 282983: 76b2d87 v: v3
git-mirror · Jan 10, 2012 · 5530aa7 · 5530aa7
1 parent 867b67b
commit 5530aa7
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Showing 2 changed files with 4 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5f163cc759a9fa8844a4efcf1f579dc5b2ca2491
+refs/heads/master: d50f2ab6f050311dbf7b8f5501b25f0bf64a439b
diff --git a/trunk/fs/ext4/super.c b/trunk/fs/ext4/super.c
@@ -2006,17 +2006,16 @@ static int ext4_fill_flex_info(struct super_block *sb)
 	struct ext4_group_desc *gdp = NULL;
 	ext4_group_t flex_group_count;
 	ext4_group_t flex_group;
-	int groups_per_flex = 0;
+	unsigned int groups_per_flex = 0;
 	size_t size;
 	int i;
 
 	sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex;
-	groups_per_flex = 1 << sbi->s_log_groups_per_flex;
-
-	if (groups_per_flex < 2) {
+	if (sbi->s_log_groups_per_flex < 1 || sbi->s_log_groups_per_flex > 31) {
 		sbi->s_log_groups_per_flex = 0;
 		return 1;
 	}
+	groups_per_flex = 1 << sbi->s_log_groups_per_flex;
 
 	/* We allocate both existing and potentially added groups */
 	flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +