ipmi: Remove usage of the deprecated ida_simple_xx() API

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

This is less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Message-Id: <b1a7a75263400742e5fda6bd7ba426772dc8ef11.1702961986.git.christophe.jaillet@wanadoo.fr>
Signed-off-by: Corey Minyard <minyard@acm.org>

drivers/char/ipmi/ipmi_msghandler.c

@@ -3053,7 +3053,7 @@ static void cleanup_bmc_work(struct work_struct *work)
 	int id = bmc->pdev.id; /* Unregister overwrites id */
 
 	platform_device_unregister(&bmc->pdev);
-	ida_simple_remove(&ipmi_bmc_ida, id);
+	ida_free(&ipmi_bmc_ida, id);
 }
 
 static void
@@ -3169,7 +3169,7 @@ static int __ipmi_bmc_register(struct ipmi_smi *intf,
 
 		bmc->pdev.name = "ipmi_bmc";
 
-		rv = ida_simple_get(&ipmi_bmc_ida, 0, 0, GFP_KERNEL);
+		rv = ida_alloc(&ipmi_bmc_ida, GFP_KERNEL);
 		if (rv < 0) {
 			kfree(bmc);
 			goto out;