Bluetooth: Replace spin_lock by mutex in hci_dev

Now we run everything in HCI in process context, so it's a better idea use
mutex instead spin_lock. The macro remains hci_dev_lock() (and I got rid
of hci_dev_lock_bh()), of course.

Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 3 insertions, 5 deletions

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 1e28be45c4f2..e7dbe597a4bb 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -117,7 +117,7 @@ struct adv_entry {
 #define NUM_REASSEMBLY 4
 struct hci_dev {
         struct list_head list;
-        spinlock_t      lock;
+        struct mutex    lock;
         atomic_t        refcnt;
 
         char            name[8];
@@ -566,10 +566,8 @@ static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
         return NULL;
 }
 
-#define hci_dev_lock(d)         spin_lock(&d->lock)
-#define hci_dev_unlock(d)       spin_unlock(&d->lock)
-#define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
-#define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
+#define hci_dev_lock(d)         mutex_lock(&d->lock)
+#define hci_dev_unlock(d)       mutex_unlock(&d->lock)
 
 struct hci_dev *hci_dev_get(int index);
 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);