netdev - [PATCH net-next 3/6] bnx2x: do not deal with power if no capability

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Date:	Mon, 18 Oct 2010 11:10:02 +0200
From:	"Dmitry Kravkov" <dmitry@...adcom.com>
To:	davem@...emloft.net, netdev@...r.kernel.org
cc:	"Eilon Greenstein" <eilong@...adcom.com>,
	"Vladislav Zolotarov" <vladz@...adcom.com>
Subject: [PATCH net-next 3/6] bnx2x: do not deal with power if no
 capability

Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
 drivers/net/bnx2x/bnx2x_cmn.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c
index 3f0540c..9a3208e 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/bnx2x/bnx2x_cmn.c
@@ -1520,6 +1520,12 @@ int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state)
 {
 	u16 pmcsr;
 
+	/* If there is no power capability, silently succeed */
+	if (!bp->pm_cap) {
+		DP(NETIF_MSG_HW, "No power capability. Breaking.\n");
+		return 0;
+	}
+
 	pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr);
 
 	switch (state) {
-- 
1.7.1





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