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path: root/drivers/oprofile/event_buffer.c
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Diffstat (limited to 'drivers/oprofile/event_buffer.c')
-rw-r--r--drivers/oprofile/event_buffer.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index 00e937e9240..e7fbac52993 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -70,11 +70,12 @@ void wake_up_buffer_waiter(void)
int alloc_event_buffer(void)
{
int err = -ENOMEM;
+ unsigned long flags;
- spin_lock(&oprofilefs_lock);
+ spin_lock_irqsave(&oprofilefs_lock, flags);
buffer_size = fs_buffer_size;
buffer_watershed = fs_buffer_watershed;
- spin_unlock(&oprofilefs_lock);
+ spin_unlock_irqrestore(&oprofilefs_lock, flags);
if (buffer_watershed >= buffer_size)
return -EINVAL;