[PATCH] cx24123: do not scare people with wrong error message

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Hi guys,

very first submission to this project.. please be nice ;)

(some people MUA's have the bad habit to trash inline patches.. here is an 
extra copy: http://www.fabbione.net/cx24123.diff)

Thanks
Fabio

# HG changeset patch
# User Fabio M. Di Nitto <fabbione@xxxxxxxxxxxx>
# Date 1228860803 -3600
# Node ID f60c6b537d850bdb4fb052a39f4e72cafb8c3a6f
# Parent  77f789d59de83e2d29af77967cffd1aa0730fa2b
cx24123: do not scare people with wrong error message

From: Fabio M. Di Nitto <fabbione@xxxxxxxxxxxx>

"CX24123: wrong demod revision: 87" is printed even if no CX24123
is detected on the board.

Add a return code check to the i2c call and print a less scary
message.

Priority: low

Signed-off-by: Fabio M. Di Nitto <fabbione@xxxxxxxxxxxx>

diff -r 77f789d59de8 -r f60c6b537d85 linux/drivers/media/dvb/frontends/cx24123.c
--- a/linux/drivers/media/dvb/frontends/cx24123.c	Tue Dec 09 16:43:10 2008 -0200
+++ b/linux/drivers/media/dvb/frontends/cx24123.c	Tue Dec 09 23:13:23 2008 +0100
@@ -1084,6 +1084,7 @@
  struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,
  				    struct i2c_adapter *i2c)
  {
+	int rc;
  	struct cx24123_state *state =
  		kzalloc(sizeof(struct cx24123_state), GFP_KERNEL);

@@ -1099,7 +1100,12 @@
  	state->i2c = i2c;

  	/* check if the demod is there */
-	state->demod_rev = cx24123_readreg(state, 0x00);
+	rc = cx24123_readreg(state, 0x00);
+	if (rc < 0) {
+		info("CX24123/CX24123C not detected\n");
+		goto error;
+	}
+	state->demod_rev = rc;
  	switch (state->demod_rev) {
  	case 0xe1:
  		info("detected CX24123C\n");


--
I'm going to make him an offer he can't refuse.

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