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Box" Cc: Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Yousef Alhouseen Subject: [PATCH] platform/x86/intel/pmc: initialize empty PMT read result Date: Tue, 30 Jun 2026 12:51:01 +0200 Message-ID: <20260630105101.54016-1-alhouseenyousef@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit pmc_core_pmt_get_lpm_req() returns the last telemetry read status. When firmware exposes no enabled low-power modes, the loop does not run and the function returns an uninitialized stack value. Initialize the status to success so an empty mode set is handled deterministically. Signed-off-by: Yousef Alhouseen --- drivers/platform/x86/intel/pmc/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index 825ba5fa0bcb..9f77c0716e59 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1583,7 +1583,7 @@ int pmc_core_pmt_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc, struct tel { const u8 *lpm_indices; int num_maps, mode_offset = 0; - int ret, lpm_size; + int ret = 0, lpm_size; u8 mode; lpm_indices = pmc->map->lpm_reg_index; -- 2.54.0