From: Oliver Neukum <oliver@neukum.org>
Date: Wed, 13 Jan 2010 14:32:21 +0000 (+0100)
Subject: USB: Remove BKL from lseek implementations
X-Git-Tag: firefly_0821_release~9833^2~3037^2~88
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=f9de332ebf9df71892d52f7eb64af101a647349f;p=firefly-linux-kernel-4.4.55.git

USB: Remove BKL from lseek implementations

Replace it by
mutex_lock(&file->f_dentry->d_inode->i_mutex);
following the example of the generic method

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 175529fd02f3..c83c975152a6 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -675,7 +675,7 @@ static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
 {
 	loff_t ret;
 
-	lock_kernel();
+	mutex_lock(&file->f_dentry->d_inode->i_mutex);
 
 	switch (orig) {
 	case 0:
@@ -691,7 +691,7 @@ static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
 		ret = -EINVAL;
 	}
 
-	unlock_kernel();
+	mutex_unlock(&file->f_dentry->d_inode->i_mutex);
 	return ret;
 }
 
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6e731507c0c4..300f65f681a3 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -122,7 +122,7 @@ static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
 {
 	loff_t ret;
 
-	lock_kernel();
+	mutex_lock(&file->f_dentry->d_inode->i_mutex);
 
 	switch (orig) {
 	case 0:
@@ -138,7 +138,7 @@ static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
 		ret = -EINVAL;
 	}
 
-	unlock_kernel();
+	mutex_unlock(&file->f_dentry->d_inode->i_mutex);
 	return ret;
 }