UBIFS: remove useless statements

This patch removes useless and duplicate statements.

Signed-off-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

7 files changed, 2 insertions, 10 deletions

diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index b4fb422e5b8d..421bd0a80424 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1464,7 +1464,6 @@ struct ubifs_lprops *ubifs_lpt_lookup(struct ubifs_info *c, int lnum)
                         return ERR_CAST(nnode);
         }
         iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
-        shft -= UBIFS_LPT_FANOUT_SHIFT;
         pnode = ubifs_get_pnode(c, nnode, iip);
         if (IS_ERR(pnode))
                 return ERR_CAST(pnode);
@@ -1604,7 +1603,6 @@ struct ubifs_lprops *ubifs_lpt_lookup_dirty(struct ubifs_info *c, int lnum)
                         return ERR_CAST(nnode);
         }
         iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
-        shft -= UBIFS_LPT_FANOUT_SHIFT;
         pnode = ubifs_get_pnode(c, nnode, iip);
         if (IS_ERR(pnode))
                 return ERR_CAST(pnode);
@@ -1964,7 +1962,6 @@ again:
                 }
         }
         iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
-        shft -= UBIFS_LPT_FANOUT_SHIFT;
         pnode = scan_get_pnode(c, path + h, nnode, iip);
         if (IS_ERR(pnode)) {
                 err = PTR_ERR(pnode);
diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
index ff47893ad5fd..d9c02928e992 100644
--- a/fs/ubifs/lpt_commit.c
+++ b/fs/ubifs/lpt_commit.c
@@ -304,7 +304,6 @@ static int layout_cnodes(struct ubifs_info *c)
                         ubifs_assert(lnum >= c->lpt_first &&
                                      lnum <= c->lpt_last);
                 }
-                done_ltab = 1;
                 c->ltab_lnum = lnum;
                 c->ltab_offs = offs;
                 offs += c->ltab_sz;
@@ -514,7 +513,6 @@ static int write_cnodes(struct ubifs_info *c)
                         if (err)
                                 return err;
                 }
-                done_ltab = 1;
                 ubifs_pack_ltab(c, buf + offs, c->ltab_cmt);
                 offs += c->ltab_sz;
                 dbg_chk_lpt_sz(c, 1, c->ltab_sz);
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index f1c3e5a1b315..4409f486ecef 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -346,7 +346,6 @@ static int write_orph_nodes(struct ubifs_info *c, int atomic)
                 int lnum;
 
                 /* Unmap any unused LEBs after consolidation */
-                lnum = c->ohead_lnum + 1;
                 for (lnum = c->ohead_lnum + 1; lnum <= c->orph_last; lnum++) {
                         err = ubifs_leb_unmap(c, lnum);
                         if (err)
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 4c37607a958e..c2c3d13efa1c 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -447,7 +447,7 @@ static int validate_sb(struct ubifs_info *c, struct ubifs_sb_node *sup)
                 goto failed;
         }
 
-        if (c->default_compr < 0 || c->default_compr >= UBIFS_COMPR_TYPES_CNT) {
+        if (c->default_compr >= UBIFS_COMPR_TYPES_CNT) {
                 err = 13;
                 goto failed;
         }
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 3904c8574ef9..3b0c2c0b389f 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -75,7 +75,7 @@ static int validate_inode(struct ubifs_info *c, const struct inode *inode)
                 return 1;
         }
 
-        if (ui->compr_type < 0 || ui->compr_type >= UBIFS_COMPR_TYPES_CNT) {
+        if (ui->compr_type >= UBIFS_COMPR_TYPES_CNT) {
                 ubifs_err("unknown compression type %d", ui->compr_type);
                 return 2;
         }
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 8a40cf9c02d7..6793db0754f6 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -3294,7 +3294,6 @@ int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode,
                 goto out_unlock;
 
         if (err) {
-                err = -EINVAL;
                 key = &from_key;
                 goto out_dump;
         }
diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 3600994f8411..7a205e046776 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -389,7 +389,6 @@ static int layout_in_gaps(struct ubifs_info *c, int cnt)
                                 ubifs_dump_lprops(c);
                         }
                         /* Try to commit anyway */
-                        err = 0;
                         break;
                 }
                 p++;