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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-03-18 23:38:50 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-03-18 23:38:50 -0700 |
| commit | 97eb3f24352ec6632c2127b35d8087d2a809a9b9 (patch) | |
| tree | 722948059bbd325bbca232269490124231df80d4 /drivers/usb/core/inode.c | |
| parent | Input: evdev - fix evdev_write return value on partial writes (diff) | |
| parent | Merge branch 'tsc2005' into next (diff) | |
| download | wireguard-linux-97eb3f24352ec6632c2127b35d8087d2a809a9b9.tar.xz wireguard-linux-97eb3f24352ec6632c2127b35d8087d2a809a9b9.zip | |
Merge branch 'next' into for-linus
Diffstat (limited to 'drivers/usb/core/inode.c')
| -rw-r--r-- | drivers/usb/core/inode.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 9819a4cc3b26..1b125c224dcf 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -39,7 +39,6 @@ #include <linux/parser.h> #include <linux/notifier.h> #include <linux/seq_file.h> -#include <linux/smp_lock.h> #include <linux/usb/hcd.h> #include <asm/byteorder.h> #include "usb.h" @@ -344,17 +343,19 @@ static int usbfs_empty (struct dentry *dentry) { struct list_head *list; - spin_lock(&dcache_lock); - + spin_lock(&dentry->d_lock); list_for_each(list, &dentry->d_subdirs) { struct dentry *de = list_entry(list, struct dentry, d_u.d_child); + + spin_lock_nested(&de->d_lock, DENTRY_D_LOCK_NESTED); if (usbfs_positive(de)) { - spin_unlock(&dcache_lock); + spin_unlock(&de->d_lock); + spin_unlock(&dentry->d_lock); return 0; } + spin_unlock(&de->d_lock); } - - spin_unlock(&dcache_lock); + spin_unlock(&dentry->d_lock); return 1; } |