ext4: Fix use of uninitialized data with debug enabled.

Fix use of uninitialized data with debug enabled.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 873ad9b3418c..c9900aade150 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2745,8 +2745,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
         sbi = EXT4_SB(sb);
         es = sbi->s_es;
 
-        ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
-                        gdp->bg_free_blocks_count);
 
         err = -EIO;
         bitmap_bh = read_block_bitmap(sb, ac->ac_b_ex.fe_group);
@@ -2762,6 +2760,9 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
         if (!gdp)
                 goto out_err;
 
+        ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
+                        gdp->bg_free_blocks_count);
+
         err = ext4_journal_get_write_access(handle, gdp_bh);
         if (err)
                 goto out_err;
@@ -3094,8 +3095,7 @@ static void ext4_mb_use_inode_pa(struct ext4_allocation_context *ac,
 static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
                                 struct ext4_prealloc_space *pa)
 {
-        unsigned len = ac->ac_o_ex.fe_len;
-
+        unsigned int len = ac->ac_o_ex.fe_len;
         ext4_get_group_no_and_offset(ac->ac_sb, pa->pa_pstart,
                                         &ac->ac_b_ex.fe_group,
                                         &ac->ac_b_ex.fe_start);