7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Radiy Zhambakiev [ Upstream commit 66ed12c1e5a986bee1dc63f9bd9c7f068138a69a ] tps65217_irq_init() ignores the error returned by tps65217_set_bits() when masking all interrupt sources. A failed register write leaves the driver's software mask out of sync with the hardware and may result in spurious interrupts. Check the return value and propagate the error to the caller. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 6556bdacf646fcaa ("mfd: tps65217: Add support for IRQs") Cc: stable@vger.kernel.org Signed-off-by: Radiy Zhambakiev Link: https://patch.msgid.link/20261002113624.178588-3-r.zhambakiev@prosoftsystems.ru Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/mfd/tps65217.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index 2d04d9e0ae29c..ee640e3fcf7b4 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -155,8 +155,12 @@ static int tps65217_irq_init(struct tps65217 *tps, int irq) /* Mask all interrupt sources */ tps->irq_mask = TPS65217_INT_MASK; - tps65217_set_bits(tps, TPS65217_REG_INT, TPS65217_INT_MASK, - TPS65217_INT_MASK, TPS65217_PROTECT_NONE); + ret = tps65217_set_bits(tps, TPS65217_REG_INT, TPS65217_INT_MASK, + TPS65217_INT_MASK, TPS65217_PROTECT_NONE); + if (ret) { + dev_err(tps->dev, "Failed to mask interrupt sources: %d\n", ret); + return ret; + } tps->irq_domain = irq_domain_create_linear(dev_fwnode(tps->dev), TPS65217_NUM_IRQ, &tps65217_irq_domain_ops, tps); -- 2.53.0