Merge branches 'cxgb4', 'flowsteer' and 'misc' into for-linus
authorRoland Dreier <roland@purestorage.com>
Mon, 23 Dec 2013 17:19:02 +0000 (09:19 -0800)
committerRoland Dreier <roland@purestorage.com>
Mon, 23 Dec 2013 17:19:02 +0000 (09:19 -0800)
drivers/infiniband/core/iwcm.c
drivers/infiniband/hw/cxgb4/mem.c

index c47c2034ca71f9a95f3153fbc31756fc34b1fde0..0717940ec3b5080083cb53e8d8526bdf692c829a 100644 (file)
@@ -181,9 +181,16 @@ static void add_ref(struct iw_cm_id *cm_id)
 static void rem_ref(struct iw_cm_id *cm_id)
 {
        struct iwcm_id_private *cm_id_priv;
+       int cb_destroy;
+
        cm_id_priv = container_of(cm_id, struct iwcm_id_private, id);
-       if (iwcm_deref_id(cm_id_priv) &&
-           test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags)) {
+
+       /*
+        * Test bit before deref in case the cm_id gets freed on another
+        * thread.
+        */
+       cb_destroy = test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags);
+       if (iwcm_deref_id(cm_id_priv) && cb_destroy) {
                BUG_ON(!list_empty(&cm_id_priv->work_list));
                free_cm_id(cm_id_priv);
        }
index 4cb8eb24497cfa61821b4863c4026ff5a061405a..84e45006451cd3983cd1b28bfb22d2c0a9c02ef7 100644 (file)
@@ -173,7 +173,7 @@ static int _c4iw_write_mem_inline(struct c4iw_rdev *rdev, u32 addr, u32 len,
        return ret;
 }
 
-int _c4iw_write_mem_dma(struct c4iw_rdev *rdev, u32 addr, u32 len, void *data)
+static int _c4iw_write_mem_dma(struct c4iw_rdev *rdev, u32 addr, u32 len, void *data)
 {
        u32 remain = len;
        u32 dmalen;