From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 23 Apr 2014 16:30:03 +0000 (+0300)
Subject: ath10k: differentiate between target init failures
X-Git-Tag: firefly_0821_release~176^2~3540^2~11^2~7^2~3^2~32
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6a4f6e1d295f4aa2e26056a859b76ccc769e75a5;p=firefly-linux-kernel-4.4.55.git

ath10k: differentiate between target init failures

This just makes it easier to tell apart different
kinds of bringup failure.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index bf1083d52e61..cd3b00cbc920 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2464,7 +2464,13 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
 		mdelay(10);
 	} while (time_before(jiffies, timeout));
 
-	if (val == 0xffffffff || !(val & FW_IND_INITIALIZED)) {
+	if (val == 0xffffffff) {
+		ath10k_err("failed to read device register, device is gone\n");
+		ret = -EIO;
+		goto out;
+	}
+
+	if (!(val & FW_IND_INITIALIZED)) {
 		ath10k_err("failed to receive initialized event from target: %08x\n",
 			   val);
 		ret = -ETIMEDOUT;