ext2: le*_add_cpu conversion

replace all:
little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) +
					expression_in_cpu_byteorder);
with:
	leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder);
generated with semantic patch

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 088b011..40d934c 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -604,7 +604,7 @@
 			"running e2fsck is recommended\n");
 	if (!le16_to_cpu(es->s_max_mnt_count))
 		es->s_max_mnt_count = cpu_to_le16(EXT2_DFL_MAX_MNT_COUNT);
-	es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+	le16_add_cpu(&es->s_mnt_count, 1);
 	ext2_write_super(sb);
 	if (test_opt (sb, DEBUG))
 		printk ("[EXT II FS %s, %s, bs=%lu, fs=%lu, gc=%lu, "