diff options
| author |   Krzysztof Opasiak <kopasiak90@gmail.com> | 2017-01-19 18:55:27 +0100 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-01-24 11:04:17 +0200 |
| commit | 20d2ca955bd09639c7b01db5761d157c297aea0a (patch) | |
| tree | 4cc0422d0e13886c703ba4d4e1b6927ab13c03ba /drivers/usb/gadget/function/f_hid.c | |
| parent | tools: usb: ffs-test: add SS descriptors (diff) | |
| download | linux-dev-20d2ca955bd09639c7b01db5761d157c297aea0a.tar.xz linux-dev-20d2ca955bd09639c7b01db5761d157c297aea0a.zip | |
usb: gadget: f_hid: fix: Free out requests
Requests for out endpoint are allocated in bind() function
but never released.
This commit ensures that all pending requests are released
when we disable out endpoint.
Fixes: 99c515005857 ("usb: gadget: hidg: register OUT INT endpoint for SET_REPORT")
Cc: stable@vger.kernel.org
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget/function/f_hid.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_hid.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index 5f8139b8e601..62cf79815506 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -425,20 +425,36 @@ static inline struct usb_request *hidg_alloc_ep_req(struct usb_ep *ep, static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req) { struct f_hidg *hidg = (struct f_hidg *) req->context; + struct usb_composite_dev *cdev = hidg->func.config->cdev; struct f_hidg_req_list *req_list; unsigned long flags; - req_list = kzalloc(sizeof(*req_list), GFP_ATOMIC); - if (!req_list) - return; + switch (req->status) { + case 0: + req_list = kzalloc(sizeof(*req_list), GFP_ATOMIC); + if (!req_list) { + ERROR(cdev, "Unable to allocate mem for req_list\n"); + goto free_req; + } - req_list->req = req; + req_list->req = req; - spin_lock_irqsave(&hidg->spinlock, flags); - list_add_tail(&req_list->list, &hidg->completed_out_req); - spin_unlock_irqrestore(&hidg->spinlock, flags); + spin_lock_irqsave(&hidg->spinlock, flags); + list_add_tail(&req_list->list, &hidg->completed_out_req); + spin_unlock_irqrestore(&hidg->spinlock, flags); - wake_up(&hidg->read_queue); + wake_up(&hidg->read_queue); + break; + default: + ERROR(cdev, "Set report failed %d\n", req->status); + /* FALLTHROUGH */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ +free_req: + free_ep_req(ep, req); + return; + } } static int hidg_setup(struct usb_function *f, |