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authorJiri Slaby <jirislaby@gmail.com>2009-05-28 09:54:47 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-02 02:48:59 +0200
commit3d58829b0510244596079c1d2f1762c53aef2e97 (patch)
treeab80e980013ca517351abb3ee601d7d5ae66f124 /arch/x86/kernel/apic/apic.c
parent58f892e022e88438183c48661dcdc6a2997dab99 (diff)
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>
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
-rw-r--r--arch/x86/kernel/apic/apic.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index b0fd26442c41..e82488d3f0ba 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2027,7 +2027,7 @@ static int lapic_resume(struct sys_device *dev)
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 @@ static int lapic_resume(struct sys_device *dev)
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 @@ static int lapic_resume(struct sys_device *dev)
restore_IO_APIC_setup(ioapic_entries);
free_ioapic_entries(ioapic_entries);
}
-
+restore:
local_irq_restore(flags);
- return 0;
+ return ret;
}
/*