(submitted on 13 Oct 2006) (this patch is wrong as spotted by Russell - could potentially dereference NULL pointer on driver removal) [PATCH] fix parport_serial_pci_resume() ignoring return value from pci_enable_device() Fix parport_serial_pci_resume() ignoring return value from pci_enable_device(). Signed-off-by: Jiri Kosina --- drivers/parport/parport_serial.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c index 78c0a26..ea76b5e 100644 --- a/drivers/parport/parport_serial.c +++ b/drivers/parport/parport_serial.c @@ -392,6 +392,7 @@ static int parport_serial_pci_suspend(st static int parport_serial_pci_resume(struct pci_dev *dev) { struct parport_serial_private *priv = pci_get_drvdata(dev); + int err; pci_set_power_state(dev, PCI_D0); pci_restore_state(dev); @@ -399,7 +400,14 @@ static int parport_serial_pci_resume(str /* * The device may have been disabled. Re-enable it. */ - pci_enable_device(dev); + err = pci_enable_device(dev); + if (err) { + printk(KERN_ERR "parport: Cannot enable PCI device %s during resume\n", + pci_name(dev)); + parport_serial_pci_remove(dev); + return err; + } + if (priv->serial) pciserial_resume_ports(priv->serial);