Static code analyzer complains to unchecked return value.
The result of pci_reset_function() is unchecked.
Despite, the issue is on the FLR supported code path and in that
case reset can be done with pcie_flr(), the patch uses less invasive
approach by adding the result check of pci_reset_function().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes:
7e2cf4feba05 ("qlcnic: change driver hardware interface mechanism")
Signed-off-by: Denis Plotnikov <den-plotnikov@yandex-team.ru>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
int i, err, ring;
if (dev->flags & QLCNIC_NEED_FLR) {
- pci_reset_function(dev->pdev);
+ err = pci_reset_function(dev->pdev);
+ if (err) {
+ dev_err(&dev->pdev->dev,
+ "Adapter reset failed (%d). Please reboot\n",
+ err);
+ return err;
+ }
dev->flags &= ~QLCNIC_NEED_FLR;
}