diff options
| author | Andy Green <andy.green@linaro.org> | 2011-12-14 07:31:01 +0800 |
|---|---|---|
| committer | Sebastien Jan <s-jan@ti.com> | 2011-12-19 15:17:11 +0100 |
| commit | a1331b60acdae81a09fe916f45bdf974912e4b76 (patch) | |
| tree | d55f2e2db273b3aa6294e0902d40ef57aaacbf9e /drivers | |
| parent | 84dd8f09e0eadb64d7fca33465f1ba173d267149 (diff) | |
musb protect mode store with rpm
Signed-off-by: Andy Green <andy.green@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 2d3f1edf37d2..aa23a16593be 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1663,6 +1663,8 @@ musb_mode_store(struct device *dev, struct device_attribute *attr, unsigned long flags; int status; + pm_runtime_get_sync(musb->controller); + spin_lock_irqsave(&musb->lock, flags); if (sysfs_streq(buf, "host")) status = musb_platform_set_mode(musb, MUSB_HOST); @@ -1674,6 +1676,8 @@ musb_mode_store(struct device *dev, struct device_attribute *attr, status = -EINVAL; spin_unlock_irqrestore(&musb->lock, flags); + pm_runtime_put(musb->controller); + return (status == 0) ? n : status; } static DEVICE_ATTR(mode, 0644, musb_mode_show, musb_mode_store); |