Author: scottl
Date: Tue Jan 9 00:00:55 2018
New Revision: 327709
URL: https://svnweb.freebsd.org/changeset/base/327709
Log:
Protect against a possible NULL deference from an accessor
function.
Obtained from: Netflix
Modified:
head/sys/cam/cam_periph.h
Modified: head/sys/cam/cam_periph.h
==============================================================================
--- head/sys/cam/cam_periph.h Mon Jan 8 22:59:36 2018 (r327708)
+++ head/sys/cam/cam_periph.h Tue Jan 9 00:00:55 2018 (r327709)
@@ -202,7 +202,10 @@ int cam_periph_error(union ccb *ccb,
cam_flags camfla
static __inline struct mtx *
cam_periph_mtx(struct cam_periph *periph)
{
- return (xpt_path_mtx(periph->path));
+ if (periph != NULL)
+ return (xpt_path_mtx(periph->path));
+ else
+ return (NULL);
}
#define cam_periph_owned(periph) \
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