Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/Documentation/dvb/README.dvb-usb b/Documentation/dvb/README.dvb-usb
index c8238e4..c4d963a 100644
--- a/Documentation/dvb/README.dvb-usb
+++ b/Documentation/dvb/README.dvb-usb
@@ -138,7 +138,7 @@
 in the device).
 
 If you want to enable debug output, you have to load the driver manually and
-from withing the dvb-kernel cvs repository.
+from within the dvb-kernel cvs repository.
 
 first have a look, which debug level are available:
 
diff --git a/Documentation/dvb/ci.txt b/Documentation/dvb/ci.txt
index 4a0c2b5..6c3bda5 100644
--- a/Documentation/dvb/ci.txt
+++ b/Documentation/dvb/ci.txt
@@ -47,7 +47,7 @@
 
 * CI modules that are supported
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The CI module support is largely dependant upon the firmware on the cards
+The CI module support is largely dependent upon the firmware on the cards
 Some cards do support almost all of the available CI modules. There is
 nothing much that can be done in order to make additional CI modules
 working with these cards.
diff --git a/Documentation/dvb/faq.txt b/Documentation/dvb/faq.txt
index 121832e..97b1373 100644
--- a/Documentation/dvb/faq.txt
+++ b/Documentation/dvb/faq.txt
@@ -106,7 +106,7 @@
 5. The dvb_net device doesn't give me any packets at all
 
 	Run tcpdump on the dvb0_0 interface. This sets the interface
-	into promiscous mode so it accepts any packets from the PID
+	into promiscuous mode so it accepts any packets from the PID
 	you have configured with the dvbnet utility. Check if there
 	are any packets with the IP addr and MAC addr you have
 	configured with ifconfig.