This patch adds mutex protection to ep_release.
Feedback and comments are highly appreciated.
Signed-off-by: Milan Svoboda <[EMAIL PROTECTED]>
---
diff -uprN -X orig/Documentation/dontdiff orig/drivers/usb/gadget/inode.c
new_gadget/drivers/usb/gadget/inode.c
--- orig/drivers/usb/gadget/inode.c 2006-06-19 10:42:37.000000000 +0000
+++ new_gadget/drivers/usb/gadget/inode.c 2006-06-26 12:31:57.000000000
+0000
@@ -478,6 +478,9 @@ ep_release (struct inode *inode, struct
{
struct ep_data *data = fd->private_data;
+ if ((value = down_interruptible (&data->lock)) < 0)
+ return value;
+
/* clean up if this can be reopened */
if (data->state != STATE_EP_UNBOUND) {
data->state = STATE_EP_DISABLED;
@@ -485,6 +488,7 @@ ep_release (struct inode *inode, struct
data->hs_desc.bDescriptorType = 0;
usb_ep_disable(data->ep);
}
+ up (&data->lock);
put_ep (data);
return 0;
}
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