paride drivers: initialize spinlocks

pcd_lock and pf_spin_lock are passed to blk_init_queue() which, seeing them
as valid lock pointer, sets it as ->queue_lock.

The problem is that pcd_lock and pf_spin_lock aren't initialized anywhere.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index c852eed..1eeb8f2 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -140,7 +140,7 @@
 #include <linux/blkdev.h>
 #include <asm/uaccess.h>
 
-static spinlock_t pcd_lock;
+static DEFINE_SPINLOCK(pcd_lock);
 
 module_param(verbose, bool, 0644);
 module_param(major, int, 0);