[SPARC64]: Make error codes available from sun4v_intr_get*().

And check for errors at call sites.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 3 deletions

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index c57b1708ae8c..0d3b0ea329c1 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -154,9 +154,16 @@ void enable_irq(unsigned int irq)
         if (tlb_type == hypervisor) {
                 unsigned int ino = __irq_ino(irq);
                 int cpu = hard_smp_processor_id();
+                int err;
 
-                sun4v_intr_settarget(ino, cpu);
+                err = sun4v_intr_settarget(ino, cpu);
+                if (err != HV_EOK)
+                        printk("sun4v_intr_settarget(%x,%d): err(%d)\n",
+                               ino, cpu, err);
                 sun4v_intr_setenabled(ino, HV_INTR_ENABLED);
+                if (err != HV_EOK)
+                        printk("sun4v_intr_setenabled(%x): err(%d)\n",
+                               ino, err);
         } else {
                 if (tlb_type == cheetah || tlb_type == cheetah_plus) {
                         unsigned long ver;
@@ -216,8 +223,12 @@ void disable_irq(unsigned int irq)
         if (imap != 0UL) {
                 if (tlb_type == hypervisor) {
                         unsigned int ino = __irq_ino(irq);
+                        int err;
 
-                        sun4v_intr_setenabled(ino, HV_INTR_DISABLED);
+                        err = sun4v_intr_setenabled(ino, HV_INTR_DISABLED);
+                        if (err != HV_EOK)
+                                printk("sun4v_intr_setenabled(%x): "
+                                       "err(%d)\n", ino, err);
                 } else {
                         u32 tmp;
 
@@ -647,8 +658,12 @@ static void process_bucket(int irq, struct ino_bucket *bp, struct pt_regs *regs)
         if (bp->pil != 0) {
                 if (tlb_type == hypervisor) {
                         unsigned int ino = __irq_ino(bp);
+                        int err;
 
-                        sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
+                        err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
+                        if (err != HV_EOK)
+                                printk("sun4v_intr_setstate(%x): "
+                                       "err(%d)\n", ino, err);
                 } else {
                         upa_writel(ICLR_IDLE, bp->iclr);
                         /* Test and add entropy */