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f_fs: ffs_func_free: cleanup requests allocated by autoconfig

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functionfs was leaking request objects created by autoconfig.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Peter Korsgaard 2012-05-03 12:58:49 +02:00 committed by Felipe Balbi
parent b4036ccdd2
commit 4f06539ffa
1 changed files with 14 additions and 0 deletions
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14
drivers/usb/gadget/f_fs.c
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@ -1473,8 +1473,22 @@ static int functionfs_bind_config(struct usb_composite_dev *cdev,
static void ffs_func_free(struct ffs_function *func)
{
struct ffs_ep *ep = func->eps;
unsigned count = func->ffs->eps_count;
unsigned long flags;
ENTER();
/* cleanup after autoconfig */
spin_lock_irqsave(&func->ffs->eps_lock, flags);
do {
if (ep->ep && ep->req)
usb_ep_free_request(ep->ep, ep->req);
ep->req = NULL;
++ep;
} while (--count);
spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
ffs_data_put(func->ffs);
kfree(func->eps);