ipmi: fix platform return check

The wrong return value is being tested when allocating a platform device
in the IPMI SI code.  Check the right value.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/ipmi/ipmi_si_intf.c

@@ -2863,7 +2863,7 @@ static int try_smi_init(struct smi_info *new_smi)
 		 */
 		new_smi->pdev = platform_device_alloc("ipmi_si",
 						      new_smi->intf_num);
-		if (rv) {
+		if (!new_smi->pdev) {
 			printk(KERN_ERR
 			       "ipmi_si_intf:"
 			       " Unable to allocate platform device\n");