Staging: lustre: lustre: lmv: Compress return logic into one line.

Simplify return logic to avoid unnecessary variable assignments.
These issues were detected using Coccinelle and the following semantic patch:

@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index f124f6c05ea4a7a34122c959f8c398efe0a859b9..76a0306df5a62951a24b3571dff3db1228fbc86f 100644 (file)
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -771,7 +771,6 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
                                 struct lustre_kernelcomm *lk,
                                 void __user *uarg)
 {
-       int rc = 0;
        __u32 i;
 
        /* unregister request (call from llapi_hsm_copytool_fini) */
@@ -791,9 +790,7 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
         * Unreached coordinators will get EPIPE on next requests
         * and will unregister automatically.
         */
-       rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
-
-       return rc;
+       return libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
 }
 
 static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
@@ -1425,8 +1422,7 @@ static int lmv_getstatus(struct obd_export *exp,
        if (rc)
                return rc;
 
-       rc = md_getstatus(lmv->tgts[0]->ltd_exp, fid);
-       return rc;
+       return md_getstatus(lmv->tgts[0]->ltd_exp, fid);
 }
 
 static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid,
@@ -1447,10 +1443,8 @@ static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid,
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_getxattr(tgt->ltd_exp, fid, valid, name, input,
+       return md_getxattr(tgt->ltd_exp, fid, valid, name, input,
                         input_size, output_size, flags, request);
-
-       return rc;
 }
 
 static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid,
@@ -1472,11 +1466,9 @@ static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid,
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_setxattr(tgt->ltd_exp, fid, valid, name, input,
+       return md_setxattr(tgt->ltd_exp, fid, valid, name, input,
                         input_size, output_size, flags, suppgid,
                         request);
-
-       return rc;
 }
 
 static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data,
@@ -1500,9 +1492,7 @@ static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data,
                return 0;
        }
 
-       rc = md_getattr(tgt->ltd_exp, op_data, request);
-
-       return rc;
+       return md_getattr(tgt->ltd_exp, op_data, request);
 }
 
 static int lmv_null_inode(struct obd_export *exp, const struct lu_fid *fid)
@@ -1549,8 +1539,7 @@ static int lmv_close(struct obd_export *exp, struct md_op_data *op_data,
                return PTR_ERR(tgt);
 
        CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1));
-       rc = md_close(tgt->ltd_exp, op_data, mod, request);
-       return rc;
+       return md_close(tgt->ltd_exp, op_data, mod, request);
 }
 
 /**
@@ -1743,10 +1732,8 @@ lmv_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
        CDEBUG(D_INODE, "ENQUEUE '%s' on " DFID " -> mds #%u\n",
               LL_IT2STR(it), PFID(&op_data->op_fid1), tgt->ltd_idx);
 
-       rc = md_enqueue(tgt->ltd_exp, einfo, policy, it, op_data, lockh,
+       return md_enqueue(tgt->ltd_exp, einfo, policy, it, op_data, lockh,
                        extra_lock_flags);
-
-       return rc;
 }
 
 static int
@@ -1894,9 +1881,7 @@ static int lmv_link(struct obd_export *exp, struct md_op_data *op_data,
        if (rc != 0)
                return rc;
 
-       rc = md_link(tgt->ltd_exp, op_data, request);
-
-       return rc;
+       return md_link(tgt->ltd_exp, op_data, request);
 }
 
 static int lmv_rename(struct obd_export *exp, struct md_op_data *op_data,
@@ -2109,8 +2094,7 @@ static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid,
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_sync(tgt->ltd_exp, fid, request);
-       return rc;
+       return md_sync(tgt->ltd_exp, fid, request);
 }
 
 /**
@@ -2428,17 +2412,14 @@ static int lmv_read_page(struct obd_export *exp, struct md_op_data *op_data,
                return rc;
 
        if (unlikely(lsm)) {
-               rc = lmv_read_striped_page(exp, op_data, cb_op, offset, ppage);
-               return rc;
+               return lmv_read_striped_page(exp, op_data, cb_op, offset, ppage);
        }
 
        tgt = lmv_find_target(lmv, &op_data->op_fid1);
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_read_page(tgt->ltd_exp, op_data, cb_op, offset, ppage);
-
-       return rc;
+       return md_read_page(tgt->ltd_exp, op_data, cb_op, offset, ppage);
 }
 
 /**
@@ -2922,13 +2903,11 @@ static int lmv_set_lock_data(struct obd_export *exp,
 {
        struct lmv_obd    *lmv = &exp->exp_obd->u.lmv;
        struct lmv_tgt_desc *tgt = lmv->tgts[0];
-       int                   rc;
 
        if (!tgt || !tgt->ltd_exp)
                return -EINVAL;
 
-       rc = md_set_lock_data(tgt->ltd_exp, lockh, data, bits);
-       return rc;
+       return md_set_lock_data(tgt->ltd_exp, lockh, data, bits);
 }
 
 static enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags,
@@ -3050,8 +3029,7 @@ static int lmv_intent_getattr_async(struct obd_export *exp,
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_intent_getattr_async(tgt->ltd_exp, minfo, einfo);
-       return rc;
+       return md_intent_getattr_async(tgt->ltd_exp, minfo, einfo);
 }
 
 static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
@@ -3070,8 +3048,7 @@ static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
        if (IS_ERR(tgt))
                return PTR_ERR(tgt);
 
-       rc = md_revalidate_lock(tgt->ltd_exp, it, fid, bits);
-       return rc;
+       return md_revalidate_lock(tgt->ltd_exp, it, fid, bits);
 }
 
 static int
@@ -3113,8 +3090,7 @@ static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp,
        }
 
        if (oqctl->qc_cmd != Q_GETOQUOTA) {
-               rc = obd_quotactl(tgt->ltd_exp, oqctl);
-               return rc;
+               return obd_quotactl(tgt->ltd_exp, oqctl);
        }
 
        for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
@@ -3234,13 +3210,11 @@ static struct md_ops lmv_md_ops = {
 static int __init lmv_init(void)
 {
        struct lprocfs_static_vars lvars;
-       int                     rc;
 
        lprocfs_lmv_init_vars(&lvars);
 
-       rc = class_register_type(&lmv_obd_ops, &lmv_md_ops,
+       return class_register_type(&lmv_obd_ops, &lmv_md_ops,
                                 LUSTRE_LMV_NAME, NULL);
-       return rc;
 }
 
 static void lmv_exit(void)