Fix misc .c/.h comment typos

Fix various .c/.h typos in comments (no code changes).

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/include/asm-parisc/dma.h b/include/asm-parisc/dma.h
index da2cf37..31ad0f0 100644
--- a/include/asm-parisc/dma.h
+++ b/include/asm-parisc/dma.h
@@ -17,10 +17,10 @@
 
 /*
 ** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up
-** (or rather not merge) DMA's into managable chunks.
+** (or rather not merge) DMAs into manageable chunks.
 ** On parisc, this is more of the software/tuning constraint
-** rather than the HW. I/O MMU allocation alogorithms can be
-** faster with smaller size is (to some degree).
+** rather than the HW. I/O MMU allocation algorithms can be
+** faster with smaller sizes (to some degree).
 */
 #define DMA_CHUNK_SIZE	(BITS_PER_LONG*PAGE_SIZE)