diff options
| author |   Andrew Morton <akpm@osdl.org> | 2006-03-23 01:38:34 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2006-04-14 11:41:25 -0700 |
| commit | 026694920579590c73b5c56705d543568ed5ad41 (patch) | |
| tree | 1c3ad318fe65c5812dd33008af8e77389ee31c46 /drivers/pci/pci.c | |
| parent | [PATCH] driver core: driver_bind attribute returns incorrect value (diff) | |
| download | linux-dev-026694920579590c73b5c56705d543568ed5ad41.tar.xz linux-dev-026694920579590c73b5c56705d543568ed5ad41.zip | |
[PATCH] pm: print name of failed suspend function
Print more diagnostic info to help identify the source of power management
suspend failures.
Example:
usb_hcd_pci_suspend(): pci_set_power_state+0x0/0x1af() returns -22
pci_device_suspend(): usb_hcd_pci_suspend+0x0/0x11b() returns -22
suspend_device(): pci_device_suspend+0x0/0x34() returns -22
Work-in-progress. It needs lots more suspend_report_result() calls sprinkled
everywhere.
Cc: Patrick Mochel <mochel@digitalimplant.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@suspend2.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index bea1ad1ad5ba..042fa5265cf6 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -307,9 +307,11 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) * Can enter D0 from any state, but if we can only go deeper * to sleep if we're already in a low power state */ - if (state != PCI_D0 && dev->current_state > state) + if (state != PCI_D0 && dev->current_state > state) { + printk(KERN_ERR "%s(): %s: state=%d, current state=%d\n", + __FUNCTION__, pci_name(dev), state, dev->current_state); return -EINVAL; - else if (dev->current_state == state) + } else if (dev->current_state == state) return 0; /* we're already there */ /* find PCI PM capability in list */ |