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openwrt/target/linux/layerscape/patches-5.4/820-usb-0023-usb-gadget-Correct-NULL-pointer-checking-in-fsl-gadg.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

32 lines
1.1 KiB
Diff

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)