diff --git a/arch/arm/mach-at91/include/mach/at91_mci.h b/arch/arm/mach-at91/include/mach/at91_mci.h
index 550d503a1bca..57f8ee154943 100644
--- a/arch/arm/mach-at91/include/mach/at91_mci.h
+++ b/arch/arm/mach-at91/include/mach/at91_mci.h
@@ -77,7 +77,7 @@
 
 #define AT91_MCI_BLKR		0x18		/* Block Register */
 #define		AT91_MCI_BLKR_BCNT(n)	((0xffff & (n)) << 0)	/* Block count */
-#define		AT91_MCI_BLKR_BLKLEN(n)	((0xffff & (n)) << 16)	/* Block lenght */
+#define		AT91_MCI_BLKR_BLKLEN(n)	((0xffff & (n)) << 16)	/* Block length */
 
 #define AT91_MCI_RSPR(n)	(0x20 + ((n) * 4))	/* Response Registers 0-3 */
 #define AT91_MCR_RDR		0x30		/* Receive Data Register */
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
index 7903ec47e6b9..f42dbabc0d30 100644
--- a/arch/s390/crypto/sha_common.c
+++ b/arch/s390/crypto/sha_common.c
@@ -79,7 +79,7 @@ int s390_sha_final(struct shash_desc *desc, u8 *out)
 	memset(ctx->buf + index, 0x00, end - index - 8);
 
 	/*
-	 * Append message length. Well, SHA-512 wants a 128 bit lenght value,
+	 * Append message length. Well, SHA-512 wants a 128 bit length value,
 	 * nevertheless we use u64, should be enough for now...
 	 */
 	bits = ctx->count * 8;
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 09ad9154d86c..73e8b1713b54 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -321,7 +321,7 @@ static atomic_t hifn_dev_number;
 #define	HIFN_PUBOPLEN_MOD_M	0x0000007f	/* modulus length mask */
 #define	HIFN_PUBOPLEN_MOD_S	0		/* modulus length shift */
 #define	HIFN_PUBOPLEN_EXP_M	0x0003ff80	/* exponent length mask */
-#define	HIFN_PUBOPLEN_EXP_S	7		/* exponent lenght shift */
+#define	HIFN_PUBOPLEN_EXP_S	7		/* exponent length shift */
 #define	HIFN_PUBOPLEN_RED_M	0x003c0000	/* reducend length mask */
 #define	HIFN_PUBOPLEN_RED_S	18		/* reducend length shift */
 
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 0843fcf8b381..325b1ad7d4b8 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -477,7 +477,7 @@ l1oip_socket_parse(struct l1oip *hc, struct sockaddr_in *sin, u8 *buf, int len)
 		printk(KERN_DEBUG "%s: received frame, parsing... (%d)\n",
 			__func__, len);
 
-	/* check lenght */
+	/* check length */
 	if (len < 1+1+2) {
 		printk(KERN_WARNING "%s: packet error - length %d below "
 			"4 bytes\n", __func__, len);
diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h
index fd2fd4e277e1..759cda55f7c3 100644
--- a/drivers/usb/wusbcore/wusbhc.h
+++ b/drivers/usb/wusbcore/wusbhc.h
@@ -198,7 +198,7 @@ struct wusb_port {
  *                 ports) this HC will take. Read-only.
  *
  * @port      	   Array of port status for each fake root port. Guaranteed to
- *                 always be the same lenght during device existence
+ *                 always be the same length during device existence
  *                 [this allows for some unlocked but referenced reading].
  *
  * @mmcies_max	   Max number of Information Elements this HC can send
diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c
index 5a777d8624da..6210fe1fd1bb 100644
--- a/drivers/uwb/uwbd.c
+++ b/drivers/uwb/uwbd.c
@@ -43,7 +43,7 @@
  *
  * EVENTS
  *
- * Events have a type, a subtype, a lenght, some other stuff and the
+ * Events have a type, a subtype, a length, some other stuff and the
  * data blob, which depends on the event. The header is 'struct
  * uwb_event'; for payloads, see 'struct uwbd_evt_*'.
  *
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 20692fbfdb24..a20bea598933 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -136,7 +136,7 @@ asn1_enum_decode(struct asn1_ctx *ctx, __le32 *val)
 		return 0;
 	}
 
-	ch = *(ctx->pointer)++; /* ch has 0xa, ptr points to lenght octet */
+	ch = *(ctx->pointer)++; /* ch has 0xa, ptr points to length octet */
 	if ((ch) == ASN1_ENUM)  /* if ch value is ENUM, 0xa */
 		*val = *(++(ctx->pointer)); /* value has enum value */
 	else
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d34afad3e137..b794dd8141a0 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -69,7 +69,7 @@
  *
  * pa_lstart -> the logical start block for this prealloc space
  * pa_pstart -> the physical start block for this prealloc space
- * pa_len    -> lenght for this prealloc space
+ * pa_len    -> length for this prealloc space
  * pa_free   ->  free space available in this prealloc space
  *
  * The inode preallocation space is used looking at the _logical_ start
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index f90231eb2916..772a4fa557f2 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -102,7 +102,7 @@ void udf_clear_inode(struct inode *inode)
 	if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB &&
 	    inode->i_size != iinfo->i_lenExtents) {
 		printk(KERN_WARNING "UDF-fs (%s): Inode %lu (mode %o) has "
-			"inode size %llu different from extent lenght %llu. "
+			"inode size %llu different from extent length %llu. "
 			"Filesystem need not be standards compliant.\n",
 			inode->i_sb->s_id, inode->i_ino, inode->i_mode,
 			(unsigned long long)inode->i_size,
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 4df6a77eb196..e4b32c8aa85f 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -549,7 +549,7 @@ static inline int ftrace_trace_task(struct task_struct *task)
  * struct trace_parser - servers for reading the user input separated by spaces
  * @cont: set if the input is not complete - no final space char was found
  * @buffer: holds the parsed user input
- * @idx: user input lenght
+ * @idx: user input length
  * @size: buffer size
  */
 struct trace_parser {