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>

1 files changed, 4 insertions, 1 deletions

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) {