diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index 3e6d17f..66b7d7a 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -830,7 +830,7 @@
 		      case 0: break;
 		      case 1: s = "unknown class"; break;
 		      case 2: s = "unknown function"; break;
-		      default: s = "unkown error"; break;
+		      default: s = "unknown error"; break;
 		   }
 		   if (s)
 	           printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
diff --git a/drivers/isdn/hardware/eicon/di.c b/drivers/isdn/hardware/eicon/di.c
index b029d13..cb14ae3 100644
--- a/drivers/isdn/hardware/eicon/di.c
+++ b/drivers/isdn/hardware/eicon/di.c
@@ -806,7 +806,7 @@
           DELIVERY - indication entered isdn_rc function
           RNR=...  - application had returned RNR=... after the
                      look ahead callback
-          RNum=0   - aplication had not returned any buffer to copy
+          RNum=0   - application had not returned any buffer to copy
                      this indication and will copy it self
           COMPLETE - XDI had copied the data to the buffers provided
                      bu the application and is about to issue the
diff --git a/drivers/isdn/hardware/eicon/maintidi.c b/drivers/isdn/hardware/eicon/maintidi.c
index 23960cb..e7cfb3b 100644
--- a/drivers/isdn/hardware/eicon/maintidi.c
+++ b/drivers/isdn/hardware/eicon/maintidi.c
@@ -385,7 +385,7 @@
                   }
                   break;
                 default:
-                  diva_mnt_internal_dprintf (0, DLI_ERR, "Unknon IDI Ind (DMA mode): %02x", Ind);
+                  diva_mnt_internal_dprintf (0, DLI_ERR, "Unknown IDI Ind (DMA mode): %02x", Ind);
               }
               p += (this_ind_length+1);
               total_length -= (4 + this_ind_length);
@@ -420,7 +420,7 @@
             }
             break;
           default:
-            diva_mnt_internal_dprintf (0, DLI_ERR, "Unknon IDI Ind: %02x", Ind);
+            diva_mnt_internal_dprintf (0, DLI_ERR, "Unknown IDI Ind: %02x", Ind);
         }
       }
     }
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c
index fc46a26..a64bb6c 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -721,7 +721,7 @@
 	switch (protocol) {
 	case (-1):	/* used for init */
 		bch->state = -1;
-		/* fall trough */
+		/* fall through */
 	case (ISDN_P_NONE):
 		if (bch->state == ISDN_P_NONE)
 			return 0; /* already in idle state */
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.h b/drivers/isdn/hardware/mISDN/hfcsusb.h
index 43efe73..369196a 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.h
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.h
@@ -150,7 +150,7 @@
 	for (i = 0; list[i].name != NULL; i++)
 		if (list[i].num == num)
 			return list[i].name;
-	return "<unkown USB Error>";
+	return "<unknown USB Error>";
 }
 
 /* USB descriptor need to contain one of the following EndPoint combination: */
diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c
index de352a1..09095c7 100644
--- a/drivers/isdn/hardware/mISDN/mISDNisar.c
+++ b/drivers/isdn/hardware/mISDN/mISDNisar.c
@@ -860,7 +860,7 @@
 		pr_debug("%s: pump stev GSTN CLEAR\n", ch->is->name);
 		break;
 	default:
-		pr_info("u%s: nknown pump stev %x\n", ch->is->name, devt);
+		pr_info("u%s: unknown pump stev %x\n", ch->is->name, devt);
 		break;
 	}
 }
diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
index 9de5420..ad5831f 100644
--- a/drivers/isdn/hisax/hfc_usb.c
+++ b/drivers/isdn/hisax/hfc_usb.c
@@ -1086,7 +1086,7 @@
 			break;
 		default:
 			DBG(HFCUSB_DBG_STATES,
-			       "HFC_USB: hfc_usb_d_l2l1: unkown state : %#x", pr);
+			       "HFC_USB: hfc_usb_d_l2l1: unknown state : %#x", pr);
 			break;
 	}
 }
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 2d14b64..0f4ea7d 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -836,7 +836,7 @@
 			unsigned short hl;
 			struct sk_buff *skb;
 			/*
-			 * we need to reserve enought space in front of
+			 * we need to reserve enough space in front of
 			 * sk_buff. old call to dev_alloc_skb only reserved
 			 * 16 bytes, now we are looking what the driver want
 			 */
@@ -1326,7 +1326,7 @@
 		struct sk_buff *new_skb;
 	        unsigned short hl;
 		/*
-		 * we need to reserve enought space in front of
+		 * we need to reserve enough space in front of
 		 * sk_buff. old call to dev_alloc_skb only reserved
 		 * 16 bytes, now we are looking what the driver want.
 		 */
@@ -1685,7 +1685,7 @@
 	 *
 	 * try to accomplish several tasks:
 	 * - reassemble any complete fragment sequence (non-null 'start'
-	 *   indicates there is a continguous sequence present)
+	 *   indicates there is a contiguous sequence present)
 	 * - discard any incomplete sequences that are below minseq -- due
 	 *   to the fact that sender always increment sequence number, if there
 	 *   is an incomplete sequence below minseq, no new fragments would
diff --git a/drivers/isdn/i4l/isdn_ttyfax.c b/drivers/isdn/i4l/isdn_ttyfax.c
index 78f7660..4c41f19 100644
--- a/drivers/isdn/i4l/isdn_ttyfax.c
+++ b/drivers/isdn/i4l/isdn_ttyfax.c
@@ -470,7 +470,7 @@
 		}
 		return 0;
 	}
-	/* BADMUL=value - dummy 0=disable errorchk disabled (treshold multiplier) */
+	/* BADMUL=value - dummy 0=disable errorchk disabled (threshold multiplier) */
 	if (!strncmp(p[0], "BADMUL", 6)) {
 		p[0] += 6;
 		switch (*p[0]) {
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 77ee286..43ff4d3 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -110,7 +110,7 @@
  * crossconnections and conferences via software if not possible through
  * hardware. If hardware capability is available, hardware is used.
  *
- * Echo: Is generated by CMX and is used to check performane of hard and
+ * Echo: Is generated by CMX and is used to check performance of hard and
  * software CMX.
  *
  * The CMX has special functions for conferences with one, two and more
diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c
index e04bad6..6d4da60 100644
--- a/drivers/isdn/mISDN/tei.c
+++ b/drivers/isdn/mISDN/tei.c
@@ -725,7 +725,7 @@
 	if (tm->rcnt == 1) {
 		if (*debug & DEBUG_L2_TEI)
 			tm->tei_m.printdebug(fi,
-			    "check req for tei %d sucessful\n", tm->l2->tei);
+			    "check req for tei %d successful\n", tm->l2->tei);
 		mISDN_FsmChangeState(fi, ST_TEI_NOP);
 	} else if (tm->rcnt > 1) {
 		/* duplicate assignment; remove */