From d3b0ffa1d75d5305ebe34735598993afbb8a869d Mon Sep 17 00:00:00 2001 From: Navid Emamdoost Date: Mon, 30 Sep 2019 15:52:40 -0500 Subject: spi: gpio: prevent memory leak in spi_gpio_probe In spi_gpio_probe an SPI master is allocated via spi_alloc_master, but this controller should be released if devm_add_action_or_reset fails, otherwise memory leaks. In order to avoid leak spi_contriller_put must be called in case of failure for devm_add_action_or_reset. Fixes: 8b797490b4db ("spi: gpio: Make sure spi_master_put() is called in every error path") Signed-off-by: Navid Emamdoost Link: https://lore.kernel.org/r/20190930205241.5483-1-navid.emamdoost@gmail.com Signed-off-by: Mark Brown --- drivers/spi/spi-gpio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/spi/spi-gpio.c') diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 1d3e23ec20a6..f9c5bbb74714 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -371,8 +371,10 @@ static int spi_gpio_probe(struct platform_device *pdev) return -ENOMEM; status = devm_add_action_or_reset(&pdev->dev, spi_gpio_put, master); - if (status) + if (status) { + spi_master_put(master); return status; + } if (of_id) status = spi_gpio_probe_dt(pdev, master); -- cgit 1.2-0.3.lf.el7