lkml.org 
[lkml]   [2009]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:irq/numa] x86, apic: Restore irqs on fail paths
Commit-ID:  3d58829b0510244596079c1d2f1762c53aef2e97
Gitweb: http://git.kernel.org/tip/3d58829b0510244596079c1d2f1762c53aef2e97
Author: Jiri Slaby <jirislaby@gmail.com>
AuthorDate: Thu, 28 May 2009 09:54:47 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 2 Jun 2009 02:48:59 +0200

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>


---
arch/x86/kernel/apic/apic.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)

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 @@ 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;
}

/*

\
 
 \ /
  Last update: 2009-06-02 02:55    [W:0.119 / U:2.800 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site