[16/37] V4L: tea5761: bugzilla #10462: tea5761 autodetection code were broken

Greg KH
2008-04-29T17:26:55Z

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2.6.25-stable review patch. If anyone has any objections, please let us
know.

------------------
From: Mauro Carvalho Chehab <mchehab@infradead.org>

(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>

---
drivers/media/video/tea5761.c | 15 ++++++++++-----
drivers/media/video/tuner-core.c | 6 +++---
2 files changed, 13 insertions(+), 8 deletions(-)

--- a/drivers/media/video/tea5761.c
+++ b/drivers/media/video/tea5761.c
@@ -249,14 +249,19 @@ int tea5761_autodetection(struct i2c_ada

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;
}

--- 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
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

goto register_client;
}
- break;
+ return -ENODEV;
case 0x42:
case 0x43:
case 0x4a:

--