From e663c5dbad2999aa824045c8e01fed459d1fc833 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Sat, 26 Nov 2016 00:55:30 +0300 Subject: [PATCH] uio: pruss: add clk_disable() pruss_probe() enables gdev->pruss_clk, but there is no clk_disable() in the driver. The patch adds clk_disable() to pruss_cleanup() and error handling for clk_enable(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Greg Kroah-Hartman --- drivers/uio/uio_pruss.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c index ca9e2fafb0b6..31d5b1d3b5af 100644 --- a/drivers/uio/uio_pruss.c +++ b/drivers/uio/uio_pruss.c @@ -111,6 +111,7 @@ static void pruss_cleanup(struct device *dev, struct uio_pruss_dev *gdev) gdev->sram_vaddr, sram_pool_sz); kfree(gdev->info); + clk_disable(gdev->pruss_clk); clk_put(gdev->pruss_clk); kfree(gdev); } @@ -143,7 +144,14 @@ static int pruss_probe(struct platform_device *pdev) kfree(gdev); return ret; } else { - clk_enable(gdev->pruss_clk); + ret = clk_enable(gdev->pruss_clk); + if (ret) { + dev_err(dev, "Failed to enable clock\n"); + clk_put(gdev->pruss_clk); + kfree(gdev->info); + kfree(gdev); + return ret; + } } regs_prussio = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- 2.39.5