treewide: fix a few typos in comments

- kenrel -> kernel
- whetehr -> whether
- ttt -> tt
- sss -> ss

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index efc309f..7797218 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -42,7 +42,7 @@
 	select LZO_DECOMPRESS
 	help
 	  Saying Y here includes support for reading Squashfs file systems
-	  compressed with LZO compresssion.  LZO compression is mainly
+	  compressed with LZO compression.  LZO compression is mainly
 	  aimed at embedded systems with slower CPUs where the overheads
 	  of zlib are too high.
 
@@ -57,7 +57,7 @@
 	select XZ_DEC
 	help
 	  Saying Y here includes support for reading Squashfs file systems
-	  compressed with XZ compresssion.  XZ gives better compression than
+	  compressed with XZ compression.  XZ gives better compression than
 	  the default zlib compression, at the expense of greater CPU and
 	  memory overhead.
 
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index c37b520..4b5a3fb 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -29,7 +29,7 @@
  * plus functions layered ontop of the generic cache implementation to
  * access the metadata and fragment caches.
  *
- * To avoid out of memory and fragmentation isssues with vmalloc the cache
+ * To avoid out of memory and fragmentation issues with vmalloc the cache
  * uses sequences of kmalloced PAGE_CACHE_SIZE buffers.
  *
  * It should be noted that the cache is not used for file datablocks, these