V4L/DVB (9299): cx18: Don't mask many real init error codes by mapping them to ENOMEM

Changes to let error return codes bubble up to the user visible
error message on card initialization.  A number of them were being remapped to
ENOMEM when no memory or array resource shortage existed.  That hampered
diagnosis of user trouble reports.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index ef60f56..7a1a783 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -699,7 +699,8 @@
 
 	/* active i2c  */
 	CX18_DEBUG_INFO("activating i2c...\n");
-	if (init_cx18_i2c(cx)) {
+	retval = init_cx18_i2c(cx);
+	if (retval) {
 		CX18_ERR("Could not initialize i2c\n");
 		goto free_map;
 	}