Wrap PNP probe code in #ifdef CONFIG_PNP.

Without this change, we'll have unresolved references to
pnp_get_resource() function when CONFIG_PNP=n.  (This is a
new interface that's not in mainline yet.)

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Index: work7/drivers/media/radio/radio-cadet.c
===================================================================
--- work7.orig/drivers/media/radio/radio-cadet.c	2008-03-27 16:10:52.000000000 -0600
+++ work7/drivers/media/radio/radio-cadet.c	2008-03-27 17:02:20.000000000 -0600
@@ -587,6 +587,8 @@
 	.vidioc_s_input     = vidioc_s_input,
 };
 
+#ifdef CONFIG_PNP
+
 static struct pnp_device_id cadet_pnp_devices[] = {
 	/* ADS Cadet AM/FM Radio Card */
 	{.id = "MSM0c24", .driver_data = 0},
@@ -621,6 +623,10 @@
 	.remove		= NULL,
 };
 
+#else
+static struct pnp_driver cadet_pnp_driver;
+#endif
+
 static int cadet_probe(void)
 {
 	static int iovals[8]={0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e};
--
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