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| author | Oliver Neukum <oliver@neukum.org> | 2012-01-02 15:11:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-03 16:49:28 -0800 |
| commit | e78832cdca2ddd23c15abaed642cad1a39b3e122 (patch) | |
| tree | 44619880735fb8bbd04032192043bddeef7d295b /drivers/usb/core/driver.c | |
| parent | 35284b3d2f68a8a3703745e629999469f78386b5 (diff) | |
| download | linux-e78832cdca2ddd23c15abaed642cad1a39b3e122.tar.gz linux-e78832cdca2ddd23c15abaed642cad1a39b3e122.tar.bz2 linux-e78832cdca2ddd23c15abaed642cad1a39b3e122.zip | |
USB: remove dead code from suspend/resume path
If a driver does not support the suspend/resume callbacks
it will be forcibly disconnected. There is no reason to check
for support of the callbacks after that.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/driver.c')
| -rw-r--r-- | drivers/usb/core/driver.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 73abd8a0647d..d40ff9568813 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1079,17 +1079,10 @@ static int usb_suspend_interface(struct usb_device *udev, goto done; driver = to_usb_driver(intf->dev.driver); - if (driver->suspend) { - status = driver->suspend(intf, msg); - if (status && !PMSG_IS_AUTO(msg)) - dev_err(&intf->dev, "%s error %d\n", - "suspend", status); - } else { - /* Later we will unbind the driver and reprobe */ - intf->needs_binding = 1; - dev_warn(&intf->dev, "no %s for driver %s?\n", - "suspend", driver->name); - } + /* at this time we know the driver supports suspend */ + status = driver->suspend(intf, msg); + if (status && !PMSG_IS_AUTO(msg)) + dev_err(&intf->dev, "suspend error %d\n", status); done: dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status); @@ -1138,16 +1131,9 @@ static int usb_resume_interface(struct usb_device *udev, "reset_resume", driver->name); } } else { - if (driver->resume) { - status = driver->resume(intf); - if (status) - dev_err(&intf->dev, "%s error %d\n", - "resume", status); - } else { - intf->needs_binding = 1; - dev_warn(&intf->dev, "no %s for driver %s?\n", - "resume", driver->name); - } + status = driver->resume(intf); + if (status) + dev_err(&intf->dev, "resume error %d\n", status); } done: |