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[PATCH] USB: convert a bunch of USB semaphores to mutexes

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the patch below converts a bunch of semaphores-used-as-mutex in the USB
code to mutexes

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arjan van de Ven
2006-01-11 15:55:29 +01:00
committed by Greg Kroah-Hartman
parent 35cce732d9
commit 4186ecf8ad
34 changed files with 389 additions and 372 deletions
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5
drivers/usb/storage/usb.h
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@@ -49,6 +49,7 @@
#include <linux/blkdev.h>
#include <linux/smp_lock.h>
#include <linux/completion.h>
#include <linux/mutex.h>
#include <scsi/scsi_host.h>
struct us_data;
@@ -103,9 +104,9 @@ typedef void (*pm_hook)(struct us_data *, int); /* power management hook */
struct us_data {
/* The device we're working with
* It's important to note:
* (o) you must hold dev_semaphore to change pusb_dev
* (o) you must hold dev_mutex to change pusb_dev
*/
struct semaphore dev_semaphore; /* protect pusb_dev */
struct mutex dev_mutex; /* protect pusb_dev */
struct usb_device *pusb_dev; /* this usb_device */
struct usb_interface *pusb_intf; /* this interface */
struct us_unusual_dev *unusual_dev; /* device-filter entry */