From 4e21791e741c7c1b962c4a8327529f52310b9aac Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Tue, 31 Oct 2017 12:49:05 -0700 Subject: spi: imx: Fix failure path leak on GPIO request error If the code that requests any chip select GPIOs fails, the cleanup of spi_bitbang_start() by calling spi_bitbang_stop() is not done. Add this to the failure path. Note that spi_bitbang_start() has to be called before requesting GPIOs because the GPIO data in the spi master is populated when the master is registed, and that doesn't happen until spi_bitbang_start() is called. CC: Shawn Guo CC: Sascha Hauer CC: Fabio Estevam CC: Mark Brown CC: Oleksij Rempel Signed-off-by: Trent Piepho Signed-off-by: Mark Brown --- drivers/spi/spi-imx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/spi') diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 70dcc8ee1f6b..fdbbdac66839 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1633,7 +1633,7 @@ static int spi_imx_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Can't get CS GPIO %i\n", master->cs_gpios[i]); - goto out_clk_put; + goto out_spi_bitbang; } } } @@ -1650,6 +1650,8 @@ static int spi_imx_probe(struct platform_device *pdev) clk_disable(spi_imx->clk_per); return ret; +out_spi_bitbang: + spi_bitbang_stop(&spi_imx->bitbang); out_clk_put: clk_disable_unprepare(spi_imx->clk_ipg); out_put_per: -- cgit