diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 2ce3806..58fccc9 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -333,7 +333,7 @@
 	flush_user_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
-	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
+	/* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
 	 * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
 	 */
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 97aa50d..ad0ede2 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -305,7 +305,7 @@
 	struct resource *res;
 	int order;
 
-	/* XXX why are some lenghts signed, others unsigned? */
+	/* XXX why are some lengths signed, others unsigned? */
 	if (len <= 0) {
 		return NULL;
 	}
@@ -393,7 +393,7 @@
  */
 dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction)
 {
-	/* XXX why are some lenghts signed, others unsigned? */
+	/* XXX why are some lengths signed, others unsigned? */
 	if (len <= 0) {
 		return 0;
 	}
diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h
index adeda76..3b12ffe 100644
--- a/drivers/ide/ide-timing.h
+++ b/drivers/ide/ide-timing.h
@@ -199,7 +199,7 @@
 	}
 
 /*
- * Lenghten active & recovery time so that cycle time is correct.
+ * Lengthen active & recovery time so that cycle time is correct.
  */
 
 	if (t->act8b + t->rec8b < t->cyc8b) {
diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c
index ccd35d0..b9177ca 100644
--- a/drivers/isdn/hardware/eicon/message.c
+++ b/drivers/isdn/hardware/eicon/message.c
@@ -4941,7 +4941,7 @@
       /* b = IE1                */
       /* S = IE1 length + cont. */
       /* b = IE2                */
-      /* S = IE2 lenght + cont. */
+      /* S = IE2 length + cont. */
       sendf(plci->appl,
         _MANUFACTURER_I,
         Id,
diff --git a/drivers/isdn/hysdn/hycapi.c b/drivers/isdn/hysdn/hycapi.c
index f854501..d3999a8 100644
--- a/drivers/isdn/hysdn/hycapi.c
+++ b/drivers/isdn/hysdn/hycapi.c
@@ -541,7 +541,7 @@
 	}
 	ctrl = &cinfo->capi_ctrl;
 	if(len < CAPI_MSG_BASELEN) {
-		printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, lenght %d!\n",
+		printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
 		       card->myid, len);
 		return;
 	}	
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index d409f67..7855906 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -179,7 +179,7 @@
 		/* CPU might have brought back the cache line, so we need
 		 * to flush again before peeking at the SMU response. We
 		 * flush the entire buffer for now as we haven't read the
-		 * reply lenght (it's only 2 cache lines anyway)
+		 * reply length (it's only 2 cache lines anyway)
 		 */
 		faddr = (unsigned long)smu->cmd_buf;
 		flush_inval_dcache_range(faddr, faddr + 256);
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 7300ace..f991d72 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -542,7 +542,7 @@
 	}
 
 	if (pdev->read_frame != NULL) {
-		/* Decompression is a lenghty process, so it's outside of the lock.
+		/* Decompression is a lengthy process, so it's outside of the lock.
 		   This gives the isoc_handler the opportunity to fill more frames
 		   in the mean time.
 		*/
diff --git a/drivers/message/fusion/lsi/mpi_log_sas.h b/drivers/message/fusion/lsi/mpi_log_sas.h
index 6be1f6b..af9da03 100644
--- a/drivers/message/fusion/lsi/mpi_log_sas.h
+++ b/drivers/message/fusion/lsi/mpi_log_sas.h
@@ -162,7 +162,7 @@
 #define PL_LOGINFO_SUB_CODE_FRAME_XFER_ERROR                 (0x00000400) /* Bits 0-3 encode Transport Status Register (offset 0x08) */
                                                                           /* Bit 0 is Status Bit 0: FrameXferErr */
                                                                           /* Bit 1 & 2 are Status Bits 16 and 17: FrameXmitErrStatus */
-                                                                          /* Bit 3 is Status Bit 18 WriteDataLenghtGTDataLengthErr */
+                                                                          /* Bit 3 is Status Bit 18 WriteDataLengthGTDataLengthErr */
 
 #define PL_LOGINFO_SUB_CODE_TX_FM_CONNECTED_LOW              (0x00000500)
 #define PL_LOGINFO_SUB_CODE_SATA_NON_NCQ_RW_ERR_BIT_SET      (0x00000600)
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index 067262ee..0513cbc 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -429,7 +429,7 @@
 	}
 }
 
-/* calc_chain_lenght: Walk through a Virtual Unit Chain and estimate chain length */
+/* calc_chain_length: Walk through a Virtual Unit Chain and estimate chain length */
 static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block)
 {
 	unsigned int length = 0, block = first_block;
diff --git a/drivers/net/irda/ali-ircc.h b/drivers/net/irda/ali-ircc.h
index e489c66..0787657 100644
--- a/drivers/net/irda/ali-ircc.h
+++ b/drivers/net/irda/ali-ircc.h
@@ -173,13 +173,13 @@
 
 struct frame_cb {
 	void *start; /* Start of frame in DMA mem */
-	int len;     /* Lenght of frame in DMA mem */
+	int len;     /* Length of frame in DMA mem */
 };
 
 struct tx_fifo {
 	struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */
 	int             ptr;                  /* Currently being sent */
-	int             len;                  /* Lenght of queue */
+	int             len;                  /* Length of queue */
 	int             free;                 /* Next free slot */
 	void           *tail;                 /* Next free start in DMA mem */
 };
diff --git a/drivers/net/irda/nsc-ircc.h b/drivers/net/irda/nsc-ircc.h
index bbdc97f..29398a4 100644
--- a/drivers/net/irda/nsc-ircc.h
+++ b/drivers/net/irda/nsc-ircc.h
@@ -231,13 +231,13 @@
 
 struct frame_cb {
 	void *start; /* Start of frame in DMA mem */
-	int len;     /* Lenght of frame in DMA mem */
+	int len;     /* Length of frame in DMA mem */
 };
 
 struct tx_fifo {
 	struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */
 	int             ptr;                  /* Currently being sent */
-	int             len;                  /* Lenght of queue */
+	int             len;                  /* Length of queue */
 	int             free;                 /* Next free slot */
 	void           *tail;                 /* Next free start in DMA mem */
 };
diff --git a/drivers/net/irda/via-ircc.h b/drivers/net/irda/via-ircc.h
index 204b1b3..9d012f0 100644
--- a/drivers/net/irda/via-ircc.h
+++ b/drivers/net/irda/via-ircc.h
@@ -54,13 +54,13 @@
 
 struct frame_cb {
 	void *start;		/* Start of frame in DMA mem */
-	int len;		/* Lenght of frame in DMA mem */
+	int len;		/* Length of frame in DMA mem */
 };
 
 struct tx_fifo {
 	struct frame_cb queue[MAX_TX_WINDOW + 2];	/* Info about frames in queue */
 	int ptr;		/* Currently being sent */
-	int len;		/* Lenght of queue */
+	int len;		/* Length of queue */
 	int free;		/* Next free slot */
 	void *tail;		/* Next free start in DMA mem */
 };
diff --git a/drivers/net/skfp/ess.c b/drivers/net/skfp/ess.c
index 62b0132..889f987 100644
--- a/drivers/net/skfp/ess.c
+++ b/drivers/net/skfp/ess.c
@@ -598,7 +598,7 @@
 	req->cmd.sba_cmd = REQUEST_ALLOCATION ;
 
 	/*
-	 * set the parameter type and parameter lenght of all used
+	 * set the parameter type and parameter length of all used
 	 * parameters
 	 */
 
diff --git a/drivers/net/skfp/fplustm.c b/drivers/net/skfp/fplustm.c
index a45205d..76dc8ad 100644
--- a/drivers/net/skfp/fplustm.c
+++ b/drivers/net/skfp/fplustm.c
@@ -398,7 +398,7 @@
 /* u_long td;		 transmit descriptor */
 /* struct fddi_mac *mac; mac frame pointer */
 /* unsigned off;	 start address within buffer memory */
-/* int len ;		 lenght of the frame including the FC */
+/* int len ;		 length of the frame including the FC */
 {
 	int	i ;
 	u_int	*p ;
diff --git a/drivers/net/skfp/hwmtm.c b/drivers/net/skfp/hwmtm.c
index 8a430a3..46e3393 100644
--- a/drivers/net/skfp/hwmtm.c
+++ b/drivers/net/skfp/hwmtm.c
@@ -1185,7 +1185,7 @@
 
 		DB_RX("frame length = %d",len,0,4) ;
 		/*
-		 * check the frame_lenght and all error flags
+		 * check the frame_length and all error flags
 		 */
 		if (rfsw & (RX_MSRABT|RX_FS_E|RX_FS_CRC|RX_FS_IMPL)){
 			if (rfsw & RD_S_MSRABT) {
diff --git a/drivers/net/wan/cycx_drv.c b/drivers/net/wan/cycx_drv.c
index d347d59..d14e667 100644
--- a/drivers/net/wan/cycx_drv.c
+++ b/drivers/net/wan/cycx_drv.c
@@ -322,7 +322,7 @@
 	void __iomem *pt_boot_cmd = addr + CMD_OFFSET;
 	u32 i;
 
-	/* boot buffer lenght */
+	/* boot buffer length */
 	writew(CFM_LOAD_BUFSZ, pt_boot_cmd + sizeof(u16));
 	writew(GEN_DEFPAR, pt_boot_cmd);
 
@@ -353,7 +353,7 @@
 	void __iomem *pt_boot_cmd = addr + CMD_OFFSET;
 	u32 i;
 
-	/* boot buffer lenght */
+	/* boot buffer length */
 	writew(CFM_LOAD_BUFSZ, pt_boot_cmd + sizeof(u16));
 	writew(GEN_DEFPAR, pt_boot_cmd);
 
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 9a61188..69f94c9 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -1473,7 +1473,7 @@
  *  Called via lbs_prepare_and_send_command(priv, CMD_802_11_SCAN, ...)
  *  from cmd.c
  *
- *  Sends a fixed lenght data part (specifying the BSS type and BSSID filters)
+ *  Sends a fixed length data part (specifying the BSS type and BSSID filters)
  *  as well as a variable number/length of TLVs to the firmware.
  *
  *  @param priv       A pointer to struct lbs_private structure
diff --git a/drivers/parport/probe.c b/drivers/parport/probe.c
index 853a15f..cd565bb 100644
--- a/drivers/parport/probe.c
+++ b/drivers/parport/probe.c
@@ -163,7 +163,7 @@
 	idlens[1] = idlens[0]+2;
 	if (belen != lelen) {
 		int off = 2;
-		/* Don't try lenghts of 0x100 and 0x200 as 1 and 2 */
+		/* Don't try lengths of 0x100 and 0x200 as 1 and 2 */
 		if (idlens[0] <= 2)
 			off = 0;
 		idlens[off] = max(belen, lelen);
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 2cd8573..639963e 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -157,7 +157,7 @@
 #define SPI_FIFO_BYTE_WIDTH		(2)
 #define SPI_FIFO_OVERFLOW_MARGIN	(2)
 
-/* DMA burst lenght for half full/empty request trigger */
+/* DMA burst length for half full/empty request trigger */
 #define SPI_DMA_BLR			(SPI_FIFO_DEPTH * SPI_FIFO_BYTE_WIDTH / 2)
 
 /* Dummy char output to achieve reads.
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index aacb4da..e3287d0 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -236,7 +236,7 @@
 	as in the indirect region code).
 	
 	When/if blockno is found, if blockno is inside of a block 
-	run as stored on disk, we offset the start and lenght members 
+	run as stored on disk, we offset the start and length members
 	of the block run, so that blockno is the start and len is
 	still valid (the run ends in the same place).
 	
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index 1543906..a000aaa 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -3965,7 +3965,7 @@
  *	xtTruncate_pmap()
  *
  * function:
- *	Perform truncate to zero lenghth for deleted file, leaving the
+ *	Perform truncate to zero length for deleted file, leaving the
  *	the xtree and working map untouched.  This allows the file to
  *	be accessed via open file handles, while the delete of the file
  *	is committed to disk.
diff --git a/include/linux/cycx_x25.h b/include/linux/cycx_x25.h
index f7a9065..362bf19 100644
--- a/include/linux/cycx_x25.h
+++ b/include/linux/cycx_x25.h
@@ -81,7 +81,7 @@
  *	@n2win - level 2 window (values: 1 thru 7)
  *	@n3win - level 3 window (values: 1 thru 7)
  *	@nvc - # of logical channels (values: 1 thru 64)
- *	@pktlen - level 3 packet lenght - log base 2 of size
+ *	@pktlen - level 3 packet length - log base 2 of size
  *	@locaddr - my address
  *	@remaddr - remote address
  *	@t1 - time, in seconds
diff --git a/include/linux/hdreg.h b/include/linux/hdreg.h
index 3882013..e38e759 100644
--- a/include/linux/hdreg.h
+++ b/include/linux/hdreg.h
@@ -364,7 +364,7 @@
 #define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
 #define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
 #define SETFEATURES_EN_REST	0xAC	/* ATA-1 */
-#define SETFEATURES_4B_RW_LONG	0xBB	/* Set Lenght of 4 bytes */
+#define SETFEATURES_4B_RW_LONG	0xBB	/* Set Length of 4 bytes */
 #define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
 #define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
 #define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt ATAPI */
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 10fa0c8..db5ef9b 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -185,7 +185,7 @@
 	unsigned long j_trans_id;
 	unsigned long j_mount_id;
 	unsigned long j_start;	/* start of current waiting commit (index into j_ap_blocks) */
-	unsigned long j_len;	/* lenght of current waiting commit */
+	unsigned long j_len;	/* length of current waiting commit */
 	unsigned long j_len_alloc;	/* number of buffers requested by journal_begin() */
 	atomic_t j_wcount;	/* count of writers for current commit */
 	unsigned long j_bcount;	/* batch count. allows turning X transactions into 1 */
diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index 74e84ca..3160dfed 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -1079,7 +1079,7 @@
  */
 struct iw_event
 {
-	__u16		len;			/* Real lenght of this stuff */
+	__u16		len;			/* Real length of this stuff */
 	__u16		cmd;			/* Wireless IOCTL */
 	union iwreq_data	u;		/* IOCTL fixed payload */
 };