Re: [PATCH] usb/gadget: fix gadgetfs aio support

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On 2016-03-23 12:51, Mathieu Laurendeau wrote:
Since commit 7fe3976e0f3ab26f8ffd9430d3d2a19a70f2c8d2 ("gadget: switch
ep_io_operations to ->read_iter/->write_iter") io submissions fail with
ENODEV.

Signed-off-by: Mathieu Laurendeau <mat.lau@xxxxxxxxxxx>
---
 drivers/usb/gadget/legacy/inode.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/legacy/inode.c
b/drivers/usb/gadget/legacy/inode.c
index 5cdaf01..416f1017 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -542,7 +542,7 @@ static ssize_t ep_aio(struct kiocb *iocb,
 	 */
 	spin_lock_irq(&epdata->dev->lock);
 	value = -ENODEV;
-	if (unlikely(epdata->ep))
+	if (unlikely(epdata->ep == NULL))
 		goto fail;

 	req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC);

Hello,

Please consider reading and applying this patch.

Regards,
Mathieu Laurendeau
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