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Date: Mon, 26 Sep 2022 12:12:12 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Marc Zyngier <maz@...nel.org>, Dongliang Mu <mudongliangabcd@...il.com>, Bartosz Golaszewski <brgl@...ev.pl>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.19 143/207] gpio: tqmx86: fix uninitialized variable girq From: Dongliang Mu <mudongliangabcd@...il.com> [ Upstream commit 21a9acc162457402c74c5c1e16471fda6eb090c0 ] The commit 924610607f19 ("gpio: tpmx86: Move PM device over to irq domain") adds a dereference of girq that may be uninitialized. Fix this by moving irq_domain_set_pm_device into if true branch as suggested by Marc Zyngier. Fixes: 924610607f19 ("gpio: tpmx86: Move PM device over to irq domain") Suggested-by: Marc Zyngier <maz@...nel.org> Signed-off-by: Dongliang Mu <mudongliangabcd@...il.com> Acked-by: Marc Zyngier <maz@...nel.org> Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/gpio/gpio-tqmx86.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-tqmx86.c b/drivers/gpio/gpio-tqmx86.c index fa4bc7481f9a..e739dcea61b2 100644 --- a/drivers/gpio/gpio-tqmx86.c +++ b/drivers/gpio/gpio-tqmx86.c @@ -307,6 +307,8 @@ static int tqmx86_gpio_probe(struct platform_device *pdev) girq->default_type = IRQ_TYPE_NONE; girq->handler = handle_simple_irq; girq->init_valid_mask = tqmx86_init_irq_valid_mask; + + irq_domain_set_pm_device(girq->domain, dev); } ret = devm_gpiochip_add_data(dev, chip, gpio); @@ -315,8 +317,6 @@ static int tqmx86_gpio_probe(struct platform_device *pdev) goto out_pm_dis; } - irq_domain_set_pm_device(girq->domain, dev); - dev_info(dev, "GPIO functionality initialized with %d pins\n", chip->ngpio); -- 2.35.1
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