X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fsysdev%2Fmpic.c;h=ee21b5e71aecd6379d7e93a4e5b299cb8901cce6;hb=5fe0c1f2f0dca3351536284b0180a79f341b7854;hp=d30e6a676c89600150adc616344ba051f2974924;hpb=8665ffc9215be1fe56f97500dad0440c9b644f5c;p=deliverable%2Flinux.git

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index d30e6a676c89..ee21b5e71aec 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1001,8 +1001,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
 
 	if (hw == mpic->spurious_vec)
 		return -EINVAL;
-	if (mpic->protected && test_bit(hw, mpic->protected))
-		return -EINVAL;
+	if (mpic->protected && test_bit(hw, mpic->protected)) {
+		pr_warning("mpic: Mapping of source 0x%x failed, "
+			   "source protected by firmware !\n",\
+			   (unsigned int)hw);
+		return -EPERM;
+	}
 
 #ifdef CONFIG_SMP
 	else if (hw >= mpic->ipi_vecs[0]) {
@@ -1029,8 +1033,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
 	if (mpic_map_error_int(mpic, virq, hw))
 		return 0;
 
-	if (hw >= mpic->num_sources)
+	if (hw >= mpic->num_sources) {
+		pr_warning("mpic: Mapping of source 0x%x failed, "
+			   "source out of range !\n",\
+			   (unsigned int)hw);
 		return -EINVAL;
+	}
 
 	mpic_msi_reserve_hwirq(mpic, hw);