diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch b/target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch new file mode 100644 index 0000000000..1195dc5dfd --- /dev/null +++ b/target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch @@ -0,0 +1,31 @@ +From 56c801e09a2b8fdc8f4ec889d7a9cec57d55f545 Mon Sep 17 00:00:00 2001 +From: Nikhil Badola <nikhil.badola@freescale.com> +Date: Tue, 9 Jun 2015 16:47:17 +0530 +Subject: [PATCH] usb: gadget: Correct NULL pointer checking in fsl gadget + +Correct NULL pointer checking for endpoint descriptor +before it gets dereferenced + +Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com> +Signed-off-by: Ran Wang <ran.wang_1@nxp.com> +Reviewed-by: Peter Chen <peter.chen@nxp.com> +--- + drivers/usb/gadget/udc/fsl_udc_core.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/drivers/usb/gadget/udc/fsl_udc_core.c ++++ b/drivers/usb/gadget/udc/fsl_udc_core.c +@@ -1052,10 +1052,11 @@ static int fsl_ep_fifo_status(struct usb + u32 bitmask; + struct ep_queue_head *qh; + +- ep = container_of(_ep, struct fsl_ep, ep); +- if (!_ep || (!ep->ep.desc && ep_index(ep) != 0)) ++ if (!_ep || _ep->desc || !(_ep->desc->bEndpointAddress&0xF)) + return -ENODEV; + ++ ep = container_of(_ep, struct fsl_ep, ep); ++ + udc = (struct fsl_udc *)ep->udc; + + if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) |