V4L/DVB (7804): tea5767: Fix error logic

As pointed by Andrew Morton, the error testing were wrong. After reviewing
tea5767, it were returning a positive value for errors.

So, the double errors were cancelling each other.

This patch fix it properly. It also considers any positive value as ok, on
tuner-core.


Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index b5dacde..4ca686f 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -1165,7 +1165,7 @@
 			/* If chip is not tda8290, don't register.
 			   since it can be tda9887*/
 			if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter,
-					       t->i2c->addr) == 0) {
+					       t->i2c->addr) >= 0) {
 				tuner_dbg("tda829x detected\n");
 			} else {
 				/* Default is being tda9887 */
@@ -1179,7 +1179,7 @@
 		case 0x60:
 			if (tuner_symbol_probe(tea5767_autodetection,
 					       t->i2c->adapter, t->i2c->addr)
-					!= EINVAL) {
+					>= 0) {
 				t->type = TUNER_TEA5767;
 				t->mode_mask = T_RADIO;
 				t->mode = T_STANDBY;