ext4: simplify checking quota limits in ext4_statfs()

Coverity reports that conditions checking quota limits in ext4_statfs()
contain dead code. Indeed it is right and current conditions can be
simplified.

Link: https://lore.kernel.org/r/20200130111148.10766-1-jack@suse.cz
Reported-by: Coverity <scan-admin@coverity.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 88b213b..f23367a 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5585,10 +5585,7 @@ static int ext4_statfs_project(struct super_block *sb,
                return PTR_ERR(dquot);
        spin_lock(&dquot->dq_dqb_lock);
 
-       limit = 0;
-       if (dquot->dq_dqb.dqb_bsoftlimit &&
-           (!limit || dquot->dq_dqb.dqb_bsoftlimit < limit))
-               limit = dquot->dq_dqb.dqb_bsoftlimit;
+       limit = dquot->dq_dqb.dqb_bsoftlimit;
        if (dquot->dq_dqb.dqb_bhardlimit &&
            (!limit || dquot->dq_dqb.dqb_bhardlimit < limit))
                limit = dquot->dq_dqb.dqb_bhardlimit;
@@ -5603,10 +5600,7 @@ static int ext4_statfs_project(struct super_block *sb,
                         (buf->f_blocks - curblock) : 0;
        }
 
-       limit = 0;
-       if (dquot->dq_dqb.dqb_isoftlimit &&
-           (!limit || dquot->dq_dqb.dqb_isoftlimit < limit))
-               limit = dquot->dq_dqb.dqb_isoftlimit;
+       limit = dquot->dq_dqb.dqb_isoftlimit;
        if (dquot->dq_dqb.dqb_ihardlimit &&
            (!limit || dquot->dq_dqb.dqb_ihardlimit < limit))
                limit = dquot->dq_dqb.dqb_ihardlimit;