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usb: r8a66597-udc: fix spinlock usage

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Because the disconnect function in the composite driver will call spin_lock,
this driver has to call spin_unlock before calling driver->disconnet().

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Yoshihiro Shimoda
2011-04-04 13:09:22 +09:00
committed by Greg Kroah-Hartman
parent 0291303d37
commit 2c2da1799b
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/gadget/r8a66597-udc.c
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@@ -1083,7 +1083,9 @@ static void irq_device_state(struct r8a66597 *r8a66597)
if (dvsq == DS_DFLT) { if (dvsq == DS_DFLT) {
/* bus reset */ /* bus reset */
spin_unlock(&r8a66597->lock);
r8a66597->driver->disconnect(&r8a66597->gadget); r8a66597->driver->disconnect(&r8a66597->gadget);
spin_lock(&r8a66597->lock);
r8a66597_update_usb_speed(r8a66597); r8a66597_update_usb_speed(r8a66597);
} }
if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG) if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)