Date: Sat, 13 Dec 2025 22:02:31 +0000 From: Dag-Erling=?utf-8?Q? Sm=C3=B8rg?=rav <des@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: b09c986c63ab - stable/13 - bus: Return 0 if reading an ivar fails Message-ID: <693de277.36bcd.44dae119@gitrepo.freebsd.org>
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The branch stable/13 has been updated by des: URL: https://cgit.FreeBSD.org/src/commit/?id=b09c986c63abee739356005e26a480ea2d6d8782 commit b09c986c63abee739356005e26a480ea2d6d8782 Author: Dag-Erling Smørgrav <des@FreeBSD.org> AuthorDate: 2025-12-05 14:57:37 +0000 Commit: Dag-Erling Smørgrav <des@FreeBSD.org> CommitDate: 2025-12-12 18:53:02 +0000 bus: Return 0 if reading an ivar fails In the non-INVARIANTS case, return 0 rather than stack garbage if reading an ivar fails (in the INVARIANTS case, we still panic). MFC after: 1 week Sponsored by: Klara, Inc. Sponsored by: NetApp, Inc. Reviewed by: jhb Differential Revision: https://reviews.freebsd.org/D54078 (cherry picked from commit 4c2295c15860e70c8bd3f05f9229d2fc40dfd50d) --- sys/sys/bus.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/sys/bus.h b/sys/sys/bus.h index ab1f3541d775..de9ee8ee286f 100644 --- a/sys/sys/bus.h +++ b/sys/sys/bus.h @@ -867,7 +867,7 @@ DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \ \ static __inline type varp ## _get_ ## var(device_t dev) \ { \ - uintptr_t v; \ + uintptr_t v = 0; \ int e __diagused; \ e = BUS_READ_IVAR(device_get_parent(dev), dev, \ ivarp ## _IVAR_ ## ivar, &v); \
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