Re: [PATCH] sk98lin: handle pci_enable_device() return value inskge_resume() properly

From: Jiri Kosina
Date: Thu Oct 12 2006 - 18:41:59 EST


On Thu, 12 Oct 2006, Stephen Hemminger wrote:

> > pci_set_power_state(pdev, PCI_D0);
> > pci_restore_state(pdev);
> > - pci_enable_device(pdev);
> > + if ((ret = pci_enable_device(pdev))) {
> > + printk(KERN_ERR "sk98lin: Cannot enable PCI device during resume\n");
> > + unregister_netdev(dev);
> >
> Having the device unregister seems harsh.

What would be the proper way? As the initialization failed, accessing the
device would not make sense any more (therefore I don't think that calling
skge_remove_one() would be OK, as it issues calls to SkEventQueue() and
SkEventDispatcher(), trying to send something to the card).

> Why put condtional on same line?

Pardon me?

> Why not print device name dev->name.

Thanks.

[PATCH] fix sk98lin driver, ignoring return value from pci_enable_device()

add check of return value to _resume() function of sk98lin driver.

Signed-off-by: Jiri Kosina <jikos@xxxxxxxx>

---

drivers/net/sk98lin/skge.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index d4913c3..1f03cf8 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -5070,7 +5070,11 @@ static int skge_resume(struct pci_dev *p

pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- pci_enable_device(pdev);
+ if ((ret = pci_enable_device(pdev))) {
+ printk(KERN_ERR "sk98lin: Cannot enable PCI device %s during resume\n",
+ dev->name);
+ return ret;
+ }
pci_set_master(pdev);
if (pAC->GIni.GIMacsFound == 2)
ret = request_irq(dev->irq, SkGeIsr, IRQF_SHARED, "sk98lin", dev);

--
Jiri Kosina
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/