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Protect against NULL pointer dereference.

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Reviewed by:	scottl
Approved by:	rwatson (mentor)
Sponsored by:	FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2009-01-23 21:08:00 +00:00
parent 041361d899
commit aac35298e6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=187652
1 changed files with 5 additions and 0 deletions
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5
sys/cam/cam_xpt.c
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@ -5194,6 +5194,11 @@ xpt_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
/* Save some state for use while we probe for devices */
scan_info = (xpt_scan_bus_info *)
malloc(sizeof(xpt_scan_bus_info), M_CAMXPT, M_NOWAIT);
if (scan_info == NULL) {
request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
xpt_done(request_ccb);
return;
}
scan_info->request_ccb = request_ccb;
scan_info->cpi = &work_ccb->cpi;