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[SCSI] osst: Use mutex instead of semaphore

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The OnStream SCSI Tape driver uses a semaphore as mutex.  Use the mutex API
instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Reviewed-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Willem Riede <wrlk@riede.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Matthias Kaehlcke
2007-08-10 14:50:44 -07:00
committed by James Bottomley
parent 488a5c8a9a
commit 4390e60163
2 changed files with 10 additions and 9 deletions
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3
drivers/scsi/osst.h
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@ -4,6 +4,7 @@
#include <asm/byteorder.h>
#include <linux/completion.h>
#include <linux/mutex.h>
/* FIXME - rename and use the following two types or delete them!
* and the types really should go to st.h anyway...
@ -532,7 +533,7 @@ struct osst_tape {
struct scsi_driver *driver;
unsigned capacity;
struct scsi_device *device;
struct semaphore lock; /* for serialization */
struct mutex lock; /* for serialization */
struct completion wait; /* for SCSI commands */
struct osst_buffer * buffer;