m68k: mac core - Kill warn_unused_result warnings

warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 8426501..f3d23d6 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -66,16 +66,21 @@
 
 void __init oss_register_interrupts(void)
 {
-	request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
-			"scsi", (void *) oss);
-	request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
-			"scc", mac_scc_dispatch);
-	request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
-			"nubus", (void *) oss);
-	request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
-			"sound", (void *) oss);
-	request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
-			"via1", (void *) via1);
+	if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
+			"scsi", (void *) oss))
+		pr_err("Couldn't register %s interrupt\n", "scsi");
+	if (request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
+			"scc", mac_scc_dispatch))
+		pr_err("Couldn't register %s interrupt\n", "scc");
+	if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
+			"nubus", (void *) oss))
+		pr_err("Couldn't register %s interrupt\n", "nubus");
+	if (request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
+			"sound", (void *) oss))
+		pr_err("Couldn't register %s interrupt\n", "sound");
+	if (request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
+			"via1", (void *) via1))
+		pr_err("Couldn't register %s interrupt\n", "via1");
 }
 
 /*