From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 16 Oct 2009 05:18:56 +0000 (+0800)
Subject: iwmc3200wifi: Do not handle wifi command if the interface is not ready
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=56e3f085f5b5e49cca37a3d1b0aa4266b984eb12;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

iwmc3200wifi: Do not handle wifi command if the interface is not ready

When resetting or bringing the interface down, we should just reject any wifi
related command.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/iwmc3200wifi/commands.c b/drivers/net/wireless/iwmc3200wifi/commands.c
index d5125b7659a8..25fb8dfd83b5 100644
--- a/drivers/net/wireless/iwmc3200wifi/commands.c
+++ b/drivers/net/wireless/iwmc3200wifi/commands.c
@@ -76,6 +76,11 @@ int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
 	int ret;
 	u8 oid = hdr->oid;
 
+	if (!test_bit(IWM_STATUS_READY, &iwm->status)) {
+		IWM_ERR(iwm, "Interface is not ready yet");
+		return -EAGAIN;
+	}
+
 	umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
 	umac_cmd.resp = resp;