[IA64] Check if irq is sharable

Need to check if irq is sharable amoung handlers when searching
sharable IOSAPIC irq.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index bcf91dceaf5d..cffb443a557c 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -502,8 +502,9 @@ static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol)
         for (i = 0; i <= NR_IRQS; i++) {
                 info = &iosapic_intr_info[i];
                 if (info->trigger == trigger && info->polarity == pol &&
-                    (info->dmode == IOSAPIC_FIXED || info->dmode ==
-                     IOSAPIC_LOWEST_PRIORITY)) {
+                    (info->dmode == IOSAPIC_FIXED ||
+                     info->dmode == IOSAPIC_LOWEST_PRIORITY) &&
+                    can_request_irq(i, IRQF_SHARED)) {
                         if (min_count == -1 || info->count < min_count) {
                                 irq = i;
                                 min_count = info->count;