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| author | Alan Stern <stern@rowland.harvard.edu> | 2010-04-02 13:22:09 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 13:21:37 -0700 |
| commit | 9e18c821659d836bd63f88df3c19729327728496 (patch) | |
| tree | 4148e58d0e03aecfe0dbeedd175bc960006570a9 /drivers/usb/core/sysfs.c | |
| parent | 7aba8d014341341590ecb64050b7a026642a62eb (diff) | |
| download | linux-9e18c821659d836bd63f88df3c19729327728496.tar.gz linux-9e18c821659d836bd63f88df3c19729327728496.tar.bz2 linux-9e18c821659d836bd63f88df3c19729327728496.zip | |
USB: use PM core routines to enable/disable autosuspend
This patch (as1366) replaces the private routines
usb_enable_autosuspend() and usb_disable_autosuspend() with calls to
the standard pm_runtime_allow() and pm_runtime_forbid() functions in
the runtime PM framework. They do the same thing.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/sysfs.c')
| -rw-r--r-- | drivers/usb/core/sysfs.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 43c002e3a9aa..b65c1eaf3aba 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -389,7 +389,7 @@ show_level(struct device *dev, struct device_attribute *attr, char *buf) struct usb_device *udev = to_usb_device(dev); const char *p = auto_string; - if (udev->state != USB_STATE_SUSPENDED && udev->autosuspend_disabled) + if (udev->state != USB_STATE_SUSPENDED && !udev->dev.power.runtime_auto) p = on_string; return sprintf(buf, "%s\n", p); } @@ -401,7 +401,7 @@ set_level(struct device *dev, struct device_attribute *attr, struct usb_device *udev = to_usb_device(dev); int len = count; char *cp; - int rc; + int rc = count; cp = memchr(buf, '\n', count); if (cp) @@ -411,17 +411,17 @@ set_level(struct device *dev, struct device_attribute *attr, if (len == sizeof on_string - 1 && strncmp(buf, on_string, len) == 0) - rc = usb_disable_autosuspend(udev); + usb_disable_autosuspend(udev); else if (len == sizeof auto_string - 1 && strncmp(buf, auto_string, len) == 0) - rc = usb_enable_autosuspend(udev); + usb_enable_autosuspend(udev); else rc = -EINVAL; usb_unlock_device(udev); - return (rc < 0 ? rc : count); + return rc; } static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level); |