In some corner cases with specific timings, we might
try dequeueing tx before we got information about
the link status (e.g. due to recovery during tx).
Instead of NULL dereference, assume all
the links in this case have low priorities.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status->priv;
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status->priv;
- u32 suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
+ u32 suspend_bitmap;
+
+ /* if we don't have the link map yet, assume they all low prio */
+ if (!status_priv)
+ return false;
/* suspended links are never high priority */
/* suspended links are never high priority */
+ suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
return false;
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
return false;
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status->priv;
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status->priv;
- u32 suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
+ u32 suspend_bitmap;
+
+ /* if we don't have the link map yet, assume they all low prio */
+ if (!status_priv)
+ return true;
+ suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
thold = status_priv->tx_suspend_threshold;
else if (test_bit(hlid, (unsigned long *)&wl->fw_fast_lnk_map) &&
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
thold = status_priv->tx_suspend_threshold;
else if (test_bit(hlid, (unsigned long *)&wl->fw_fast_lnk_map) &&