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Diffstat (limited to 'drivers/usb/musb/musb_core.c')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0b742ebe5c8..de7f8bec6bd 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1671,17 +1671,20 @@ musb_mode_store(struct device *dev, struct device_attribute *attr, { struct musb *musb = dev_to_musb(dev); unsigned long flags; + int status; spin_lock_irqsave(&musb->lock, flags); - if (!strncmp(buf, "host", 4)) - musb_platform_set_mode(musb, MUSB_HOST); - if (!strncmp(buf, "peripheral", 10)) - musb_platform_set_mode(musb, MUSB_PERIPHERAL); - if (!strncmp(buf, "otg", 3)) - musb_platform_set_mode(musb, MUSB_OTG); + if (sysfs_streq(buf, "host")) + status = musb_platform_set_mode(musb, MUSB_HOST); + else if (sysfs_streq(buf, "peripheral")) + status = musb_platform_set_mode(musb, MUSB_PERIPHERAL); + else if (sysfs_streq(buf, "otg")) + status = musb_platform_set_mode(musb, MUSB_OTG); + else + status = -EINVAL; spin_unlock_irqrestore(&musb->lock, flags); - return n; + return (status == 0) ? n : status; } static DEVICE_ATTR(mode, 0644, musb_mode_show, musb_mode_store); |