x86, apic: Restore irqs on fail paths
lapic_resume forgets to restore interrupts on fail paths.
Fix that.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
LKML-Reference: <1243497289-18591-1-git-send-email-jirislaby@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index b0fd264..e82488d 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2027,7 +2027,7 @@
unsigned int l, h;
unsigned long flags;
int maxlvt;
- int ret;
+ int ret = 0;
struct IO_APIC_route_entry **ioapic_entries = NULL;
if (!apic_pm_state.active)
@@ -2038,14 +2038,15 @@
ioapic_entries = alloc_ioapic_entries();
if (!ioapic_entries) {
WARN(1, "Alloc ioapic_entries in lapic resume failed.");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto restore;
}
ret = save_IO_APIC_setup(ioapic_entries);
if (ret) {
WARN(1, "Saving IO-APIC state failed: %d\n", ret);
free_ioapic_entries(ioapic_entries);
- return ret;
+ goto restore;
}
mask_IO_APIC_setup(ioapic_entries);
@@ -2097,10 +2098,10 @@
restore_IO_APIC_setup(ioapic_entries);
free_ioapic_entries(ioapic_entries);
}
-
+restore:
local_irq_restore(flags);
- return 0;
+ return ret;
}
/*