From 9b1a0a7771a62c3af4dce83e7cfd199367bd84ff Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Wed, 25 Jul 2012 14:22:21 +0300 Subject: [PATCH] wlcore: consider single fw case When a single fw is being used for both single-role and multi-role cases (e.g. 18xx), wl->mr_fw_name is NULL, which results in NULL dereference while trying to load the multi-role fw. In this case, always use the single-role fw, and avoid redundant fw switch by checking for this case in wl12xx_need_fw_change() as well. Signed-off-by: Eliad Peller Signed-off-by: Luciano Coelho --- drivers/net/wireless/ti/wlcore/main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 600af8e81904..f421c42b32ea 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -696,7 +696,7 @@ static int wl12xx_fetch_firmware(struct wl1271 *wl, bool plt) * we can't call wl12xx_get_vif_count() here because * wl->mutex is taken, so use the cached last_vif_count value */ - if (wl->last_vif_count > 1) { + if (wl->last_vif_count > 1 && wl->mr_fw_name) { fw_type = WL12XX_FW_TYPE_MULTI; fw_name = wl->mr_fw_name; } else { @@ -2170,6 +2170,10 @@ static bool wl12xx_need_fw_change(struct wl1271 *wl, if (wl->state == WL1271_STATE_OFF) return false; + /* no need for fw change if a single fw is used */ + if (!wl->mr_fw_name) + return false; + if (vif_count > 1 && current_fw == WL12XX_FW_TYPE_NORMAL) return true; if (vif_count <= 1 && current_fw == WL12XX_FW_TYPE_MULTI) -- 2.11.0