From 974488e4ce1ed0b39f2c711c13f523c5912128a1 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Thu, 26 Oct 2017 18:08:39 -0700 Subject: [PATCH] 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. Fix this by moving spi_bitbang_start() to after the code that requets GPIOs. The GPIOs are dev managed and don't need explicit cleanup. Since spi_bitbang_start() is now the last operation, it doesn't need to be cleaned up in the failure path. CC: Shawn Guo CC: Sascha Hauer CC: Fabio Estevam CC: Mark Brown Reviewed-by: Oleksij Rempel Signed-off-by: Trent Piepho Signed-off-by: Mark Brown --- drivers/spi/spi-imx.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index fe35aaea323b..5ddd32ba2521 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1613,11 +1613,6 @@ static int spi_imx_probe(struct platform_device *pdev) spi_imx->devtype_data->intctrl(spi_imx, 0); master->dev.of_node = pdev->dev.of_node; - ret = spi_bitbang_start(&spi_imx->bitbang); - if (ret) { - dev_err(&pdev->dev, "bitbang start failed with %d\n", ret); - goto out_clk_put; - } if (!spi_imx->slave_mode) { if (!master->cs_gpios) { @@ -1641,6 +1636,12 @@ static int spi_imx_probe(struct platform_device *pdev) } } + ret = spi_bitbang_start(&spi_imx->bitbang); + if (ret) { + dev_err(&pdev->dev, "bitbang start failed with %d\n", ret); + goto out_clk_put; + } + dev_info(&pdev->dev, "probed\n"); clk_disable(spi_imx->clk_ipg);