- decrement module use count on error

Signed-off-by: Marco Schluessler <marco@lordzodiac.de>

diff -bur v4l-dvb-96c5b8101ea3_orig/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c v4l-dvb-96c5b8101ea3/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
--- v4l-dvb-96c5b8101ea3_orig/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c	2007-08-17 21:05:15.000000000 +0200
+++ v4l-dvb-96c5b8101ea3/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c	2007-08-18 00:16:24.000000000 +0200
@@ -1536,8 +1536,10 @@
 		return -EIO;
 
 	err = dvb_generic_open(inode, file);
-	if (err < 0)
+	if (err < 0) {
+		module_put(ca->pub->owner);
 		return err;
+	}
 
 	for (i = 0; i < ca->slot_count; i++) {