irqdomain: Allow quiet failure mode

[deliverable/linux.git] / arch / powerpc / sysdev / mpic.c

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index d30e6a676c89600150adc616344ba051f2974924..ee21b5e71aecd6379d7e93a4e5b299cb8901cce6 100644 (file)
--- 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);