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path: root/drivers/usb/core
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Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index e47e3a8ed6e..cf11196e012 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -200,7 +200,7 @@ static void update_sb(struct super_block *sb)
if (!root)
return;
- mutex_lock(&root->d_inode->i_mutex);
+ mutex_lock_nested(&root->d_inode->i_mutex, I_MUTEX_PARENT);
list_for_each_entry(bus, &root->d_subdirs, d_u.d_child) {
if (bus->d_inode) {