2 files changed, 4 insertions, 4 deletions

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;
 }