From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 13 Aug 2011 16:13:49 +0000 (-0600)
Subject: ath9k: remove a bogus WARN_ON
X-Git-Tag: v3.2-rc1~129^2~353^2^2~50
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=292121dce2af63dab371102097a887de7cf24233;p=~emulex%2Finfiniband.git

ath9k: remove a bogus WARN_ON

On embedded hardware it's normal to not have a PCI device for the PCI
bridge that the wifi card is attached to. pdev->bus->self will be
NULL in that case. In that case, simply return without emitting an
useless kernel stack trace.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 8bd8e85ece4..d704c8d9bae 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -126,7 +126,7 @@ static void ath_pci_aspm_init(struct ath_common *common)
 		 * Both upstream and downstream PCIe components should
 		 * have the same ASPM settings.
 		 */
-		if (WARN_ON(!parent))
+		if (!parent)
 			return;
 
 		pos = pci_pcie_cap(parent);
@@ -137,7 +137,7 @@ static void ath_pci_aspm_init(struct ath_common *common)
 		return;
 	}
 
-	if (WARN_ON(!parent))
+	if (!parent)
 		return;
 
 	pos = pci_pcie_cap(parent);