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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 <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexey Khoroshilov 2016-11-26 00:55:30 +03:00 committed by Greg Kroah-Hartman
parent 999e4bf1d7
commit e663c5dbad
1 changed files with 9 additions and 1 deletions
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10
drivers/uio/uio_pruss.c
View File

@ -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);