ocfs2: fix a spelling typo in comment

Fix a spelling typo in comment.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kunwu Chan <[email protected]>
Acked-by: Joseph Qi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: KunWuChan

fs/ocfs2/buffer_head_io.c

@@ -345,7 +345,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 				if (new_bh && bh) {
 					/* If middle bh fails, let previous bh
 					 * finish its read and then put it to
-					 * aovoid bh leak
+					 * avoid bh leak
 					 */
 					if (!buffer_jbd(bh))
 						wait_on_buffer(bh);