usb: gadget: f_fs: add missing spinlock and mutex unlock

This patch adds missing spin_unlock and mutex_unlock calls in
error handling code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 10c086afa2f4..2e164dca08e8 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -802,7 +802,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
                 if (io_data->aio) {
                         req = usb_ep_alloc_request(ep->ep, GFP_KERNEL);
                         if (unlikely(!req))
-                                goto error;
+                                goto error_lock;
 
                         req->buf      = data;
                         req->length   = io_data->len;
@@ -817,7 +817,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
                         ret = usb_ep_queue(ep->ep, req, GFP_ATOMIC);
                         if (unlikely(ret)) {
                                 usb_ep_free_request(ep->ep, req);
-                                goto error;
+                                goto error_lock;
                         }
                         ret = -EIOCBQUEUED;
 
@@ -865,6 +865,10 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 
         mutex_unlock(&epfile->mutex);
         return ret;
+
+error_lock:
+        spin_unlock_irq(&epfile->ffs->eps_lock);
+        mutex_unlock(&epfile->mutex);
 error:
         kfree(data);
         return ret;