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authorJulien Grall <julien.grall@linaro.org>2013-07-29 20:06:05 +0400
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2013-08-05 15:21:39 +0400
commit0d7febe58413884f6428143221971618fbf3a47d (patch)
tree0082a4a410b4d3c0bc86f055dfc3245ca24ee069 /arch/arm
parent088eef2219bd1e8cb82bfcb5b32c1c687aeea6d7 (diff)
downloadlinux-0d7febe58413884f6428143221971618fbf3a47d.tar.xz
xen/arm: missing put_cpu in xen_percpu_init
When CONFIG_PREEMPT is enabled, Linux will not be able to boot and warn: [ 4.127825] ------------[ cut here ]------------ [ 4.133376] WARNING: at init/main.c:699 do_one_initcall+0x150/0x158() [ 4.140738] initcall xen_init_events+0x0/0x10c returned with preemption imbalance This is because xen_percpu_init uses get_cpu but doesn't have the corresponding put_cpu. Signed-off-by: Julien Grall <julien.grall@linaro.org> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/xen/enlighten.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 13609e01f4b7..05db95d010ae 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -170,6 +170,7 @@ static void __init xen_percpu_init(void *unused)
per_cpu(xen_vcpu, cpu) = vcpup;
enable_percpu_irq(xen_events_irq, 0);
+ put_cpu();
}
static void xen_restart(char str, const char *cmd)