UBIFS: fix checkpatch.pl warnings

These are mostly long lines and wrong indentation warning
fixes. But also there are two volatile variables and
checkpatch.pl complains about them:

WARNING: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
+       volatile int gc_seq;

WARNING: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
+       volatile int gced_lnum;

Well, we anyway use smp_wmb() for c->gc_seq and c->gced_lnum, so
these 'volatile' modifiers can be just dropped.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 6eef534..f7e36f5 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -2245,12 +2245,11 @@
 			if (found) {
 				/* Ensure the znode is dirtied */
 				if (znode->cnext || !ubifs_zn_dirty(znode)) {
-					    znode = dirty_cow_bottom_up(c,
-									znode);
-					    if (IS_ERR(znode)) {
-						    err = PTR_ERR(znode);
-						    goto out_unlock;
-					    }
+					znode = dirty_cow_bottom_up(c, znode);
+					if (IS_ERR(znode)) {
+						err = PTR_ERR(znode);
+						goto out_unlock;
+					}
 				}
 				zbr = &znode->zbranch[n];
 				lnc_free(zbr);
@@ -2317,11 +2316,11 @@
 
 		/* Ensure the znode is dirtied */
 		if (znode->cnext || !ubifs_zn_dirty(znode)) {
-			    znode = dirty_cow_bottom_up(c, znode);
-			    if (IS_ERR(znode)) {
-				    err = PTR_ERR(znode);
-				    goto out_unlock;
-			    }
+			znode = dirty_cow_bottom_up(c, znode);
+			if (IS_ERR(znode)) {
+				err = PTR_ERR(znode);
+				goto out_unlock;
+			}
 		}
 
 		if (found == 1) {
@@ -2627,11 +2626,11 @@
 
 		/* Ensure the znode is dirtied */
 		if (znode->cnext || !ubifs_zn_dirty(znode)) {
-			    znode = dirty_cow_bottom_up(c, znode);
-			    if (IS_ERR(znode)) {
-				    err = PTR_ERR(znode);
-				    goto out_unlock;
-			    }
+			znode = dirty_cow_bottom_up(c, znode);
+			if (IS_ERR(znode)) {
+				err = PTR_ERR(znode);
+				goto out_unlock;
+			}
 		}
 
 		/* Remove all keys in range except the first */