If the device is already suspended, just return the error and skip the
code that would incorrectly wipe md->suspended_bdev.
(This isn't currently a problem because existing code avoids
calling this function if the device is already suspended.)
Signed-off-by: Alasdair G Kergon <[email protected]>
Cc: [email protected]
Index: linux-2.6.19-rc4/drivers/md/dm.c
===================================================================
--- linux-2.6.19-rc4.orig/drivers/md/dm.c 2006-11-07 17:06:27.000000000 +0000
+++ linux-2.6.19-rc4/drivers/md/dm.c 2006-11-07 17:07:57.000000000 +0000
@@ -1285,7 +1285,7 @@ int dm_suspend(struct mapped_device *md,
down(&md->suspend_lock);
if (dm_suspended(md))
- goto out;
+ goto out_unlock;
map = dm_get_table(md);
@@ -1361,6 +1361,8 @@ out:
}
dm_table_put(map);
+
+out_unlock:
up(&md->suspend_lock);
return r;
}
-
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