f2fs: fix minor typo

Correct typo from 'destory' to 'destroy'.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 93c5e26..ff4b723 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2678,7 +2678,7 @@
 	bio_entry_slab = f2fs_kmem_cache_create("bio_entry",
 			sizeof(struct bio_entry));
 	if (!bio_entry_slab)
-		goto destory_discard_entry;
+		goto destroy_discard_entry;
 
 	sit_entry_set_slab = f2fs_kmem_cache_create("sit_entry_set",
 			sizeof(struct sit_entry_set));
@@ -2695,7 +2695,7 @@
 	kmem_cache_destroy(sit_entry_set_slab);
 destroy_bio_entry:
 	kmem_cache_destroy(bio_entry_slab);
-destory_discard_entry:
+destroy_discard_entry:
 	kmem_cache_destroy(discard_entry_slab);
 fail:
 	return -ENOMEM;