There is usb_get_dev() in gtco_probe(), but there is no usb_put_dev()
anywhere in the driver.
The patch adds usb_get_dev() to failure handling code of gtco_probe()
and to gtco_disconnect(().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshi...@ispras.ru>
---
drivers/input/tablet/gtco.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 29e01ab6859f..6ec8a3a04672 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -858,7 +858,7 @@ static int gtco_probe(struct usb_interface *usbinterface,
if (!gtco->buffer) {
dev_err(&usbinterface->dev, "No more memory for us buffers\n");
error = -ENOMEM;
- goto err_free_devs;
+ goto err_put_usb;
}
/* Allocate URB for reports */
@@ -990,6 +990,8 @@ static int gtco_probe(struct usb_interface *usbinterface,
err_free_buf:
usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
gtco->buffer, gtco->buf_dma);
+ err_put_usb:
+ usb_put_dev(gtco->usbdev);
err_free_devs:
input_free_device(input_dev);
kfree(gtco);
@@ -1013,6 +1015,7 @@ static void gtco_disconnect(struct usb_interface
*interface)
usb_free_urb(gtco->urbinfo);
usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
gtco->buffer, gtco->buf_dma);
+ usb_put_dev(gtco->usbdev);
kfree(gtco);
}
--
1.8.3.2
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