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Code Issues Releases Activity

Fix NULL-pointer dereference in usb_endpoint_foreach().

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PR:		usb/138389
Submitted by:	Patroklos Argyroudis at census, inc
This commit is contained in:
Andrew Thompson 2009-09-28 07:39:51 +00:00
parent 3bfbd845ff
commit a9e267575b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=197558
1 changed files with 3 additions and 1 deletions
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4
sys/dev/usb/usb_device.c
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@ -367,12 +367,14 @@ usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
struct usb_endpoint *
usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
{
struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
struct usb_endpoint *ep_end;
/* be NULL safe */
if (udev == NULL)
return (NULL);
ep_end = udev->endpoints + udev->endpoints_max;
/* get next endpoint */
if (ep == NULL)
ep = udev->endpoints;