x86: hpet: Fix inverted return value check in arch_setup_hpet_msi()

setup_hpet_msi_remapped() returns a negative error indicator on error
- check for this rather than for a boolean false indication, and pass
on that error code rather than a meaningless "-1".

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Link: http://lkml.kernel.org/r/5093E00D02000078000A60E2@nat28.tlf.novell.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 1817fa911024..b134f0b7ed25 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3317,8 +3317,9 @@ int arch_setup_hpet_msi(unsigned int irq, unsigned int id)
         int ret;
 
         if (irq_remapping_enabled) {
-                if (!setup_hpet_msi_remapped(irq, id))
-                        return -1;
+                ret = setup_hpet_msi_remapped(irq, id);
+                if (ret)
+                        return ret;
         }
 
         ret = msi_compose_msg(NULL, irq, &msg, id);