From: Frank Haverkamp <haver@linux.vnet.ibm.com>
Date: Wed, 10 Sep 2014 14:37:50 +0000 (+0200)
Subject: GenWQE: Check return code of pci_sriov_enable
X-Git-Tag: v3.18-rc1~126^2~34
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bc407dd319bb8c3608369989d95b700d00e6cf43;p=karo-tx-linux.git

GenWQE: Check return code of pci_sriov_enable

Forgetting to check this, can lead to problems on systems which
do not support SRIOV.

Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/misc/genwqe/card_base.c b/drivers/misc/genwqe/card_base.c
index 12926c8c0609..16672d9e1e0c 100644
--- a/drivers/misc/genwqe/card_base.c
+++ b/drivers/misc/genwqe/card_base.c
@@ -1320,11 +1320,14 @@ static void genwqe_err_resume(struct pci_dev *pci_dev)
 
 static int genwqe_sriov_configure(struct pci_dev *dev, int numvfs)
 {
+	int rc;
 	struct genwqe_dev *cd = dev_get_drvdata(&dev->dev);
 
 	if (numvfs > 0) {
 		genwqe_setup_vf_jtimer(cd);
-		pci_enable_sriov(dev, numvfs);
+		rc = pci_enable_sriov(dev, numvfs);
+		if (rc < 0)
+			return rc;
 		return numvfs;
 	}
 	if (numvfs == 0) {