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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2011-04-04 13:09:22 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-13 15:44:00 -0700
commit2c2da1799ba776c4bd8d51ee46d9f00cb4cc6120 (patch)
tree2695612408a89e40fb180e44065e8a616f942609 /drivers
parent0291303d37585ab9056bae9fac1d1e13ae1ce913 (diff)
usb: r8a66597-udc: fix spinlock usage
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/gadget/r8a66597-udc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 015118535f7..6dcc1f68fa6 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1083,7 +1083,9 @@ static void irq_device_state(struct r8a66597 *r8a66597)
if (dvsq == DS_DFLT) {
/* bus reset */
+ spin_unlock(&r8a66597->lock);
r8a66597->driver->disconnect(&r8a66597->gadget);
+ spin_lock(&r8a66597->lock);
r8a66597_update_usb_speed(r8a66597);
}
if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)