[ck] [PATCH openEuler v1 075/119] openEuler: arm64/mpam: mon: add WARN_ON for debug free_pmg

From: Xie XiuQi &lt;xiexiuqi(a)huawei.com&gt; commit 81ef5294de16ef6c8fec8a8aab509212d2240623 openEuler-1.0 hulk inclusion category: feature bugzilla: 5510 CVE: NA Signed-off-by: Xie XiuQi &lt;xiexiuqi(a)huawei.com&gt; Reviewed-by: Hanjun Guo &lt;guohanjun(a)huawei.com&gt; Signed-off-by: Yang Yingliang &lt;yangyingliang(a)huawei.com&gt; Signed-off-by: Xin Hao &lt;haoxing990(a)gmail.com&gt; --- arch/arm64/kernel/mpam_mon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/mpam_mon.c b/arch/arm64/kernel/mpam_mon.c index ae946b2ee681..0a3a202afc9f 100644 --- a/arch/arm64/kernel/mpam_mon.c +++ b/arch/arm64/kernel/mpam_mon.c @@ -64,6 +64,8 @@ int alloc_pmg(void) void free_pmg(u32 pmg) { + WARN_ON(!pmg); + pmg_free_map |= 1 << pmg; } -- 2.31.0