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path: root/drivers/block/aoe/aoeblk.c
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Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
-rw-r--r--drivers/block/aoe/aoeblk.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 65deffde60a..a946929735a 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/genhd.h>
#include <linux/netdevice.h>
+#include <linux/smp_lock.h>
#include "aoe.h"
static struct kmem_cache *buf_pool_cache;
@@ -124,13 +125,16 @@ aoeblk_open(struct block_device *bdev, fmode_t mode)
struct aoedev *d = bdev->bd_disk->private_data;
ulong flags;
+ lock_kernel();
spin_lock_irqsave(&d->lock, flags);
if (d->flags & DEVFL_UP) {
d->nopen++;
spin_unlock_irqrestore(&d->lock, flags);
+ unlock_kernel();
return 0;
}
spin_unlock_irqrestore(&d->lock, flags);
+ unlock_kernel();
return -ENODEV;
}