From: Mauro Carvalho Chehab <mchehab@infradead.org>
Date: Fri, 25 Apr 2008 00:52:33 +0000 (-0400)
Subject: V4L: tea5761: bugzilla #10462: tea5761 autodetection code were broken
X-Git-Tag: v2.6.25.1~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d7b4f5b64ffaf423a1a92d330f7fe78fc3c8a81;p=thirdparty%2Fkernel%2Fstable.git

V4L: tea5761: bugzilla #10462: tea5761 autodetection code were broken

(cherry picked from commit 867e835f4db4eba6d49072382cc05fc210c4ed1c)

Fix bugzilla #10462: "tea5761 autodetection code were broken"

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/media/video/tea5761.c b/drivers/media/video/tea5761.c
index 5326eeceaacda..de7e060b0cf5c 100644
--- a/drivers/media/video/tea5761.c
+++ b/drivers/media/video/tea5761.c
@@ -249,14 +249,19 @@ int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
 
 	if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
 		printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc);
-		return EINVAL;
+		return -EINVAL;
 	}
 
-	if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) {
-		printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);
-		return EINVAL;
+	if ((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061)) {
+		printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x."
+				    " It is not a TEA5761\n",
+				    buffer[13], buffer[14], buffer[15]);
+		return -EINVAL;
 	}
-	printk(KERN_WARNING "TEA5761 detected.\n");
+	printk(KERN_WARNING "tea5761: TEA%02x%02x detected. "
+			    "Manufacturer ID= 0x%02x\n",
+			    buffer[14], buffer[15], buffer[13]);
+
 	return 0;
 }
 
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 78a09a2a4857b..8cdbdd000e9d3 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -1112,8 +1112,8 @@ static int tuner_probe(struct i2c_client *client)
 	if (!no_autodetect) {
 		switch (client->addr) {
 		case 0x10:
-			if (tea5761_autodetection(t->i2c->adapter, t->i2c->addr)
-					!= EINVAL) {
+			if (tea5761_autodetection(t->i2c->adapter,
+						  t->i2c->addr) >= 0) {
 				t->type = TUNER_TEA5761;
 				t->mode_mask = T_RADIO;
 				t->mode = T_STANDBY;
@@ -1125,7 +1125,7 @@ static int tuner_probe(struct i2c_client *client)
 
 				goto register_client;
 			}
-			break;
+			return -ENODEV;
 		case 0x42:
 		case 0x43:
 		case 0x4a: