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Message-Id: <1272191830-23675-1-git-send-email-abogani@texware.it>
Date: Sun, 25 Apr 2010 12:37:10 +0200
From: Alessio Igor Bogani <abogani@...ware.it>
To: Greg Kroah-Hartman <gregkh@...e.de>,
Thomas Winischhofer <thomas@...ischhofer.net>,
Oliver Neukum <neukum@...systems.de>,
Mauro Carvalho Chehab <mchehab@...hat.com>,
Pete Zaitcev <zaitcev@...hat.com>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
Alessio Igor Bogani <abogani@...ware.it>
Subject: [PATCH] USB: sisusbvga: Remove the BKL from open
BKL is not needed here because necessary locking is already provided
by mutex sisusb->lock.
Signed-off-by: Alessio Igor Bogani <abogani@...ware.it>
---
drivers/usb/misc/sisusbvga/sisusb.c | 9 ---------
1 files changed, 0 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 63a6070..30d9303 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -47,7 +47,6 @@
#include <linux/spinlock.h>
#include <linux/kref.h>
#include <linux/usb.h>
-#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
#include "sisusb.h"
@@ -2416,14 +2415,11 @@ sisusb_open(struct inode *inode, struct file *file)
struct usb_interface *interface;
int subminor = iminor(inode);
- lock_kernel();
if (!(interface = usb_find_interface(&sisusb_driver, subminor))) {
- unlock_kernel();
return -ENODEV;
}
if (!(sisusb = usb_get_intfdata(interface))) {
- unlock_kernel();
return -ENODEV;
}
@@ -2431,13 +2427,11 @@ sisusb_open(struct inode *inode, struct file *file)
if (!sisusb->present || !sisusb->ready) {
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return -ENODEV;
}
if (sisusb->isopen) {
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return -EBUSY;
}
@@ -2446,13 +2440,11 @@ sisusb_open(struct inode *inode, struct file *file)
if (sisusb_init_gfxdevice(sisusb, 0)) {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Failed to initialize device\n");
- unlock_kernel();
return -EIO;
}
} else {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Device not attached to USB 2.0 hub\n");
- unlock_kernel();
return -EIO;
}
}
@@ -2465,7 +2457,6 @@ sisusb_open(struct inode *inode, struct file *file)
file->private_data = sisusb;
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return 0;
}
--
1.6.3.3
--
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