From: Jiale Yao <yaojiale02@163.com>
To: platform-driver-x86@vger.kernel.org
Cc: "Jiale Yao" <yaojiale02@163.com>,
"Naveen Krishna Chatradhi" <naveenkrishna.chatradhi@amd.com>,
"Carlos Bilbao" <carlos.bilbao@kernel.org>,
"Hans de Goede" <hansg@kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v3 3/3] platform/x86: hsmp: Check ACPI_COMPANION() against NULL
Date: Mon, 13 Jul 2026 23:14:21 +0800 [thread overview]
Message-ID: <20260713151422.82947-3-yaojiale02@163.com> (raw)
In-Reply-To: <20260713151422.82947-1-yaojiale02@163.com>
Add a requisite ACPI_COMPANION() check against NULL to the
AMD HSMP acpi probe, aligning with the fix applied to
asus-wireless driver.
Assisted-by: claude:deepseek-v4-pro
Signed-off-by: Jiale Yao <yaojiale02@163.com>
---
drivers/platform/x86/amd/hsmp/acpi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c
index 97ed71593bdf..615b3ebe66e7 100644
--- a/drivers/platform/x86/amd/hsmp/acpi.c
+++ b/drivers/platform/x86/amd/hsmp/acpi.c
@@ -71,6 +71,8 @@ static inline int hsmp_get_uid(struct device *dev, u16 *sock_ind)
{
char *uid;
+ if (!ACPI_COMPANION(dev))
+ return -ENODEV;
/*
* UID (ID00, ID01..IDXX) is used for differentiating sockets,
* read it and strip the "ID" part of it and convert the remaining
--
2.34.1
next prev parent reply other threads:[~2026-07-13 15:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 15:14 [PATCH v3 1/3] platform/x86: asus-wireless: " Jiale Yao
2026-07-13 15:14 ` [PATCH v3 2/3] platform/x86: topstar-laptop: " Jiale Yao
2026-07-13 15:14 ` Jiale Yao [this message]
2026-07-18 3:14 ` [PATCH v3 3/3] platform/x86: hsmp: " Carlos Bilbao
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