[PATCH] rock: manual tidies

Fix stuff which Lindent got wrong, rework a few deeply-nested blocks.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

fs/isofs/rock.c

@@ -90,82 +90,78 @@ int get_rock_ridge_filename(struct iso_directory_record *de,
 	int len;
 	unsigned char *chr;
 	CONTINUE_DECLS;
-	int retnamlen = 0, truncate = 0;
+	struct rock_ridge *rr;
+	int sig;
+	int retnamlen = 0;
+	int truncate = 0;
 
 	if (!ISOFS_SB(inode->i_sb)->s_rock)
 		return 0;
 	*retname = 0;
 
 	SETUP_ROCK_RIDGE(de, chr, len);
-      repeat:
-	{
-		struct rock_ridge *rr;
-		int sig;
-
-		while (len > 2) {	/* There may be one byte for padding somewhere */
-			rr = (struct rock_ridge *)chr;
-			if (rr->len < 3)
-				goto out;	/* Something got screwed up here */
-			sig = isonum_721(chr);
-			chr += rr->len;
-			len -= rr->len;
-			if (len < 0)
-				goto out;	/* corrupted isofs */
-
-			switch (sig) {
-			case SIG('R', 'R'):
-				if ((rr->u.RR.flags[0] & RR_NM) == 0)
-					goto out;
+repeat:
+
+	while (len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *)chr;
+		if (rr->len < 3)
+			goto out;	/* Something got screwed up here */
+		sig = isonum_721(chr);
+		chr += rr->len;
+		len -= rr->len;
+		if (len < 0)
+			goto out;	/* corrupted isofs */
+
+		switch (sig) {
+		case SIG('R', 'R'):
+			if ((rr->u.RR.flags[0] & RR_NM) == 0)
+				goto out;
+			break;
+		case SIG('S', 'P'):
+			CHECK_SP(goto out);
+			break;
+		case SIG('C', 'E'):
+			CHECK_CE;
+			break;
+		case SIG('N', 'M'):
+			if (truncate)
 				break;
-			case SIG('S', 'P'):
-				CHECK_SP(goto out);
+			if (rr->len < 5)
 				break;
-			case SIG('C', 'E'):
-				CHECK_CE;
+			/*
+			 * If the flags are 2 or 4, this indicates '.' or '..'.
+			 * We don't want to do anything with this, because it
+			 * screws up the code that calls us.  We don't really
+			 * care anyways, since we can just use the non-RR
+			 * name.
+			 */
+			if (rr->u.NM.flags & 6)
 				break;
-			case SIG('N', 'M'):
-				if (truncate)
-					break;
-				if (rr->len < 5)
-					break;
-				/*
-				 * If the flags are 2 or 4, this indicates '.' or '..'.
-				 * We don't want to do anything with this, because it
-				 * screws up the code that calls us.  We don't really
-				 * care anyways, since we can just use the non-RR
-				 * name.
-				 */
-				if (rr->u.NM.flags & 6) {
-					break;
-				}
 
-				if (rr->u.NM.flags & ~1) {
-					printk
-					    ("Unsupported NM flag settings (%d)\n",
-					     rr->u.NM.flags);
-					break;
-				}
-				if ((strlen(retname) + rr->len - 5) >= 254) {
-					truncate = 1;
-					break;
-				}
-				strncat(retname, rr->u.NM.name, rr->len - 5);
-				retnamlen += rr->len - 5;
+			if (rr->u.NM.flags & ~1) {
+				printk("Unsupported NM flag settings (%d)\n",
+					rr->u.NM.flags);
 				break;
-			case SIG('R', 'E'):
-				if (buffer)
-					kfree(buffer);
-				return -1;
-			default:
+			}
+			if ((strlen(retname) + rr->len - 5) >= 254) {
+				truncate = 1;
 				break;
 			}
+			strncat(retname, rr->u.NM.name, rr->len - 5);
+			retnamlen += rr->len - 5;
+			break;
+		case SIG('R', 'E'):
+			if (buffer)
+				kfree(buffer);
+			return -1;
+		default:
+			break;
 		}
 	}
 	MAYBE_CONTINUE(repeat, inode);
-	if (buffer)
-		kfree(buffer);
+	kfree(buffer);
 	return retnamlen;	/* If 0, this file did not have a NM field */
-      out:
+out:
 	if (buffer)
 		kfree(buffer);
 	return 0;
@@ -178,6 +174,11 @@ parse_rock_ridge_inode_internal(struct iso_directory_record *de,
 	int len;
 	unsigned char *chr;
 	int symlink_len = 0;
+	int cnt, sig;
+	struct inode *reloc;
+	struct rock_ridge *rr;
+	int rootflag;
+
 	CONTINUE_DECLS;
 
 	if (!ISOFS_SB(inode->i_sb)->s_rock)
@@ -191,238 +192,237 @@ parse_rock_ridge_inode_internal(struct iso_directory_record *de,
 			len = 0;
 	}
 
-      repeat:
-	{
-		int cnt, sig;
-		struct inode *reloc;
-		struct rock_ridge *rr;
-		int rootflag;
-
-		while (len > 2) {	/* There may be one byte for padding somewhere */
-			rr = (struct rock_ridge *)chr;
-			if (rr->len < 3)
-				goto out;	/* Something got screwed up here */
-			sig = isonum_721(chr);
-			chr += rr->len;
-			len -= rr->len;
-			if (len < 0)
-				goto out;	/* corrupted isofs */
-
-			switch (sig) {
+repeat:
+	while (len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *)chr;
+		if (rr->len < 3)
+			goto out;	/* Something got screwed up here */
+		sig = isonum_721(chr);
+		chr += rr->len;
+		len -= rr->len;
+		if (len < 0)
+			goto out;	/* corrupted isofs */
+
+		switch (sig) {
 #ifndef CONFIG_ZISOFS		/* No flag for SF or ZF */
-			case SIG('R', 'R'):
-				if ((rr->u.RR.flags[0] &
-				     (RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
-					goto out;
-				break;
+		case SIG('R', 'R'):
+			if ((rr->u.RR.flags[0] &
+			     (RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
+				goto out;
+			break;
 #endif
-			case SIG('S', 'P'):
-				CHECK_SP(goto out);
-				break;
-			case SIG('C', 'E'):
-				CHECK_CE;
-				break;
-			case SIG('E', 'R'):
-				ISOFS_SB(inode->i_sb)->s_rock = 1;
-				printk(KERN_DEBUG "ISO 9660 Extensions: ");
-				{
-					int p;
-					for (p = 0; p < rr->u.ER.len_id; p++)
-						printk("%c", rr->u.ER.data[p]);
+		case SIG('S', 'P'):
+			CHECK_SP(goto out);
+			break;
+		case SIG('C', 'E'):
+			CHECK_CE;
+			break;
+		case SIG('E', 'R'):
+			ISOFS_SB(inode->i_sb)->s_rock = 1;
+			printk(KERN_DEBUG "ISO 9660 Extensions: ");
+			{
+				int p;
+				for (p = 0; p < rr->u.ER.len_id; p++)
+					printk("%c", rr->u.ER.data[p]);
+			}
+			printk("\n");
+			break;
+		case SIG('P', 'X'):
+			inode->i_mode = isonum_733(rr->u.PX.mode);
+			inode->i_nlink = isonum_733(rr->u.PX.n_links);
+			inode->i_uid = isonum_733(rr->u.PX.uid);
+			inode->i_gid = isonum_733(rr->u.PX.gid);
+			break;
+		case SIG('P', 'N'):
+			{
+				int high, low;
+				high = isonum_733(rr->u.PN.dev_high);
+				low = isonum_733(rr->u.PN.dev_low);
+				/*
+				 * The Rock Ridge standard specifies that if
+				 * sizeof(dev_t) <= 4, then the high field is
+				 * unused, and the device number is completely
+				 * stored in the low field.  Some writers may
+				 * ignore this subtlety,
+				 * and as a result we test to see if the entire
+				 * device number is
+				 * stored in the low field, and use that.
+				 */
+				if ((low & ~0xff) && high == 0) {
+					inode->i_rdev =
+					    MKDEV(low >> 8, low & 0xff);
+				} else {
+					inode->i_rdev =
+					    MKDEV(high, low);
 				}
-				printk("\n");
-				break;
-			case SIG('P', 'X'):
-				inode->i_mode = isonum_733(rr->u.PX.mode);
-				inode->i_nlink = isonum_733(rr->u.PX.n_links);
-				inode->i_uid = isonum_733(rr->u.PX.uid);
-				inode->i_gid = isonum_733(rr->u.PX.gid);
-				break;
-			case SIG('P', 'N'):
-				{
-					int high, low;
-					high = isonum_733(rr->u.PN.dev_high);
-					low = isonum_733(rr->u.PN.dev_low);
-					/*
-					 * The Rock Ridge standard specifies that if sizeof(dev_t) <= 4,
-					 * then the high field is unused, and the device number is completely
-					 * stored in the low field.  Some writers may ignore this subtlety,
-					 * and as a result we test to see if the entire device number is
-					 * stored in the low field, and use that.
-					 */
-					if ((low & ~0xff) && high == 0) {
-						inode->i_rdev =
-						    MKDEV(low >> 8, low & 0xff);
-					} else {
-						inode->i_rdev =
-						    MKDEV(high, low);
+			}
+			break;
+		case SIG('T', 'F'):
+			/*
+			 * Some RRIP writers incorrectly place ctime in the
+			 * TF_CREATE field. Try to handle this correctly for
+			 * either case.
+			 */
+			/* Rock ridge never appears on a High Sierra disk */
+			cnt = 0;
+			if (rr->u.TF.flags & TF_CREATE) {
+				inode->i_ctime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_ctime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_MODIFY) {
+				inode->i_mtime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_mtime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_ACCESS) {
+				inode->i_atime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_atime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_ATTRIBUTES) {
+				inode->i_ctime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_ctime.tv_nsec = 0;
+			}
+			break;
+		case SIG('S', 'L'):
+			{
+				int slen;
+				struct SL_component *slp;
+				struct SL_component *oldslp;
+				slen = rr->len - 5;
+				slp = &rr->u.SL.link;
+				inode->i_size = symlink_len;
+				while (slen > 1) {
+					rootflag = 0;
+					switch (slp->flags & ~1) {
+					case 0:
+						inode->i_size +=
+						    slp->len;
+						break;
+					case 2:
+						inode->i_size += 1;
+						break;
+					case 4:
+						inode->i_size += 2;
+						break;
+					case 8:
+						rootflag = 1;
+						inode->i_size += 1;
+						break;
+					default:
+						printk("Symlink component flag "
+							"not implemented\n");
 					}
-				}
-				break;
-			case SIG('T', 'F'):
-				/* Some RRIP writers incorrectly place ctime in the TF_CREATE field.
-				   Try to handle this correctly for either case. */
-				cnt = 0;	/* Rock ridge never appears on a High Sierra disk */
-				if (rr->u.TF.flags & TF_CREATE) {
-					inode->i_ctime.tv_sec =
-					    iso_date(rr->u.TF.times[cnt++].time,
-						     0);
-					inode->i_ctime.tv_nsec = 0;
-				}
-				if (rr->u.TF.flags & TF_MODIFY) {
-					inode->i_mtime.tv_sec =
-					    iso_date(rr->u.TF.times[cnt++].time,
-						     0);
-					inode->i_mtime.tv_nsec = 0;
-				}
-				if (rr->u.TF.flags & TF_ACCESS) {
-					inode->i_atime.tv_sec =
-					    iso_date(rr->u.TF.times[cnt++].time,
-						     0);
-					inode->i_atime.tv_nsec = 0;
-				}
-				if (rr->u.TF.flags & TF_ATTRIBUTES) {
-					inode->i_ctime.tv_sec =
-					    iso_date(rr->u.TF.times[cnt++].time,
-						     0);
-					inode->i_ctime.tv_nsec = 0;
-				}
-				break;
-			case SIG('S', 'L'):
-				{
-					int slen;
-					struct SL_component *slp;
-					struct SL_component *oldslp;
-					slen = rr->len - 5;
-					slp = &rr->u.SL.link;
-					inode->i_size = symlink_len;
-					while (slen > 1) {
-						rootflag = 0;
-						switch (slp->flags & ~1) {
-						case 0:
+					slen -= slp->len + 2;
+					oldslp = slp;
+					slp = (struct SL_component *)
+						(((char *)slp) + slp->len + 2);
+
+					if (slen < 2) {
+						if (((rr->u.SL.
+						      flags & 1) != 0)
+						    &&
+						    ((oldslp->
+						      flags & 1) == 0))
 							inode->i_size +=
-							    slp->len;
-							break;
-						case 2:
-							inode->i_size += 1;
-							break;
-						case 4:
-							inode->i_size += 2;
-							break;
-						case 8:
-							rootflag = 1;
-							inode->i_size += 1;
-							break;
-						default:
-							printk
-							    ("Symlink component flag not implemented\n");
-						}
-						slen -= slp->len + 2;
-						oldslp = slp;
-						slp =
-						    (struct SL_component
-						     *)(((char *)slp) +
-							slp->len + 2);
-
-						if (slen < 2) {
-							if (((rr->u.SL.
-							      flags & 1) != 0)
-							    &&
-							    ((oldslp->
-							      flags & 1) == 0))
-								inode->i_size +=
-								    1;
-							break;
-						}
-
-						/*
-						 * If this component record isn't continued, then append a '/'.
-						 */
-						if (!rootflag
-						    && (oldslp->flags & 1) == 0)
-							inode->i_size += 1;
+							    1;
+						break;
 					}
+
+					/*
+					 * If this component record isn't
+					 * continued, then append a '/'.
+					 */
+					if (!rootflag
+					    && (oldslp->flags & 1) == 0)
+						inode->i_size += 1;
 				}
-				symlink_len = inode->i_size;
-				break;
-			case SIG('R', 'E'):
-				printk(KERN_WARNING
-				       "Attempt to read inode for relocated directory\n");
+			}
+			symlink_len = inode->i_size;
+			break;
+		case SIG('R', 'E'):
+			printk(KERN_WARNING "Attempt to read inode for "
+					"relocated directory\n");
+			goto out;
+		case SIG('C', 'L'):
+			ISOFS_I(inode)->i_first_extent =
+			    isonum_733(rr->u.CL.location);
+			reloc =
+			    isofs_iget(inode->i_sb,
+				       ISOFS_I(inode)->i_first_extent,
+				       0);
+			if (!reloc)
 				goto out;
-			case SIG('C', 'L'):
-				ISOFS_I(inode)->i_first_extent =
-				    isonum_733(rr->u.CL.location);
-				reloc =
-				    isofs_iget(inode->i_sb,
-					       ISOFS_I(inode)->i_first_extent,
-					       0);
-				if (!reloc)
-					goto out;
-				inode->i_mode = reloc->i_mode;
-				inode->i_nlink = reloc->i_nlink;
-				inode->i_uid = reloc->i_uid;
-				inode->i_gid = reloc->i_gid;
-				inode->i_rdev = reloc->i_rdev;
-				inode->i_size = reloc->i_size;
-				inode->i_blocks = reloc->i_blocks;
-				inode->i_atime = reloc->i_atime;
-				inode->i_ctime = reloc->i_ctime;
-				inode->i_mtime = reloc->i_mtime;
-				iput(reloc);
-				break;
+			inode->i_mode = reloc->i_mode;
+			inode->i_nlink = reloc->i_nlink;
+			inode->i_uid = reloc->i_uid;
+			inode->i_gid = reloc->i_gid;
+			inode->i_rdev = reloc->i_rdev;
+			inode->i_size = reloc->i_size;
+			inode->i_blocks = reloc->i_blocks;
+			inode->i_atime = reloc->i_atime;
+			inode->i_ctime = reloc->i_ctime;
+			inode->i_mtime = reloc->i_mtime;
+			iput(reloc);
+			break;
 #ifdef CONFIG_ZISOFS
-			case SIG('Z', 'F'):
-				if (!ISOFS_SB(inode->i_sb)->s_nocompress) {
-					int algo;
-					algo = isonum_721(rr->u.ZF.algorithm);
-					if (algo == SIG('p', 'z')) {
-						int block_shift =
-						    isonum_711(&rr->u.ZF.
-							       parms[1]);
-						if (block_shift <
-						    PAGE_CACHE_SHIFT
-						    || block_shift > 17) {
-							printk(KERN_WARNING
-							       "isofs: Can't handle ZF block size of 2^%d\n",
-							       block_shift);
-						} else {
-							/* Note: we don't change i_blocks here */
-							ISOFS_I(inode)->
-							    i_file_format =
-							    isofs_file_compressed;
-							/* Parameters to compression algorithm (header size, block size) */
-							ISOFS_I(inode)->
-							    i_format_parm[0] =
-							    isonum_711(&rr->u.
-								       ZF.
-								       parms
-								       [0]);
-							ISOFS_I(inode)->
-							    i_format_parm[1] =
-							    isonum_711(&rr->u.
-								       ZF.
-								       parms
-								       [1]);
-							inode->i_size =
-							    isonum_733(rr->u.ZF.
-								       real_size);
-						}
-					} else {
-						printk(KERN_WARNING
-						       "isofs: Unknown ZF compression algorithm: %c%c\n",
-						       rr->u.ZF.algorithm[0],
-						       rr->u.ZF.algorithm[1]);
-					}
-				}
-				break;
-#endif
-			default:
+		case SIG('Z', 'F'): {
+			int algo;
+
+			if (ISOFS_SB(inode->i_sb)->s_nocompress)
 				break;
+			algo = isonum_721(rr->u.ZF.algorithm);
+			if (algo == SIG('p', 'z')) {
+				int block_shift =
+					isonum_711(&rr->u.ZF.parms[1]);
+				if (block_shift < PAGE_CACHE_SHIFT
+						|| block_shift > 17) {
+					printk(KERN_WARNING "isofs: "
+						"Can't handle ZF block "
+						"size of 2^%d\n",
+						block_shift);
+				} else {
+					/*
+					 * Note: we don't change
+					 * i_blocks here
+					 */
+					ISOFS_I(inode)->i_file_format =
+						isofs_file_compressed;
+					/*
+					 * Parameters to compression
+					 * algorithm (header size,
+					 * block size)
+					 */
+					ISOFS_I(inode)->i_format_parm[0] =
+						isonum_711(&rr->u.ZF.parms[0]);
+					ISOFS_I(inode)->i_format_parm[1] =
+						isonum_711(&rr->u.ZF.parms[1]);
+					inode->i_size =
+					    isonum_733(rr->u.ZF.
+						       real_size);
+				}
+			} else {
+				printk(KERN_WARNING
+				       "isofs: Unknown ZF compression "
+						"algorithm: %c%c\n",
+				       rr->u.ZF.algorithm[0],
+				       rr->u.ZF.algorithm[1]);
 			}
+			break;
+		}
+#endif
+		default:
+			break;
 		}
 	}
 	MAYBE_CONTINUE(repeat, inode);
-      out:
+out:
 	if (buffer)
 		kfree(buffer);
 	return 0;
@@ -553,8 +553,8 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 
 	SETUP_ROCK_RIDGE(raw_inode, chr, len);
 
-      repeat:
-	while (len > 2) {	/* There may be one byte for padding somewhere */
+repeat:
+	while (len > 2) { /* There may be one byte for padding somewhere */
 		rr = (struct rock_ridge *)chr;
 		if (rr->len < 3)
 			goto out;	/* Something got screwed up here */
@@ -586,8 +586,7 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 		}
 	}
 	MAYBE_CONTINUE(repeat, inode);
-	if (buffer)
-		kfree(buffer);
+	kfree(buffer);
 
 	if (rpnt == link)
 		goto fail;
@@ -600,19 +599,19 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 	return 0;
 
 	/* error exit from macro */
-      out:
+out:
 	if (buffer)
 		kfree(buffer);
 	goto fail;
-      out_noread:
+out_noread:
 	printk("unable to read i-node block");
 	goto fail;
-      out_bad_span:
+out_bad_span:
 	printk("symlink spans iso9660 blocks\n");
-      fail:
+fail:
 	brelse(bh);
 	unlock_kernel();
-      error:
+error:
 	SetPageError(page);
 	kunmap(page);
 	unlock_page(page);