[PATCH] bttv: fix compiler warning before kernel 2.6.30

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From: Márton Németh <nm127@xxxxxxxxxxx>

Fix the following compiler warnings when compiling before Linux
kernel version 2.6.30:
  bttv-i2c.c: In function 'init_bttv_i2c':
  bttv-i2c.c:440: warning: control reaches end of non-void function

Signed-off-by: Márton Németh <nm127@xxxxxxxxxxx>
---
diff -r 41c5482f2dac linux/drivers/media/video/bt8xx/bttv-i2c.c
--- a/linux/drivers/media/video/bt8xx/bttv-i2c.c	Thu Mar 04 02:49:46 2010 -0300
+++ b/linux/drivers/media/video/bt8xx/bttv-i2c.c	Sat Mar 06 10:22:55 2010 +0100
@@ -409,7 +409,6 @@
 	}
 	if (0 == btv->i2c_rc && i2c_scan)
 		do_i2c_scan(btv->c.v4l2_dev.name, &btv->i2c_client);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)

 	return btv->i2c_rc;
 }
@@ -417,6 +416,7 @@
 /* Instantiate the I2C IR receiver device, if present */
 void __devinit init_bttv_i2c_ir(struct bttv *btv)
 {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)
 	if (0 == btv->i2c_rc) {
 		struct i2c_board_info info;
 		/* The external IR receiver is at i2c address 0x34 (0x35 for

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