From: David S. Miller <davem@sunset.davemloft.net>
Date: Fri, 25 May 2007 00:54:15 +0000 (-0700)
Subject: [CASSINI]: Check pci_set_mwi() return value.
X-Git-Tag: firefly_0821_release~28883^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=04efb8787e4d8a7b21a61aeb723de33154311256;p=firefly-linux-kernel-4.4.55.git

[CASSINI]: Check pci_set_mwi() return value.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 4aec747d9e43..9fe3a38883ee 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -4919,7 +4919,10 @@ static int __devinit cas_init_one(struct pci_dev *pdev,
 	pci_cmd &= ~PCI_COMMAND_SERR;
 	pci_cmd |= PCI_COMMAND_PARITY;
 	pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
-	pci_set_mwi(pdev);
+	if (pci_set_mwi(pdev))
+		printk(KERN_WARNING PFX "Could enable MWI for %s\n",
+		       pci_name(pdev));
+
 	/*
 	 * On some architectures, the default cache line size set
 	 * by pci_set_mwi reduces perforamnce.  We have to increase