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Fri, 06 Dec 2024 20:03:42 -0800 (PST) From: Mingwei Zheng To: edubezval@gmail.com, j-keerthy@ti.com, rafael@kernel.org, daniel.lezcano@linaro.org, rui.zhang@intel.com, lukasz.luba@arm.com, aford173@gmail.com Cc: linux-pm@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, Mingwei Zheng , Jiasheng Jiang Subject: [PATCH] thermal: ti-soc-thermal: Add check for clk_enable() Date: Fri, 6 Dec 2024 23:07:02 -0500 Message-Id: <20241207040702.4075128-1-zmw12306@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add check for the return value of clk_enable() to catch the potential error. Fixes: 5093402e5b44 ("thermal: ti-soc-thermal: Enable addition power management") Signed-off-by: Mingwei Zheng Signed-off-by: Jiasheng Jiang --- drivers/thermal/ti-soc-thermal/ti-bandgap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c index ba43399d0b38..da3e5dec8709 100644 --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c @@ -1189,6 +1189,7 @@ static int bandgap_omap_cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) { struct ti_bandgap *bgp; + int ret; bgp = container_of(nb, struct ti_bandgap, nb); @@ -1206,8 +1207,11 @@ static int bandgap_omap_cpu_notifier(struct notifier_block *nb, case CPU_CLUSTER_PM_EXIT: if (bgp->is_suspended) break; - if (TI_BANDGAP_HAS(bgp, CLK_CTRL)) - clk_enable(bgp->fclock); + if (TI_BANDGAP_HAS(bgp, CLK_CTRL)) { + ret = clk_enable(bgp->fclock); + if (ret) + return NOTIFY_BAD; + } ti_bandgap_power(bgp, true); ti_bandgap_restore_ctxt(bgp); break;