Commit 56a6cb88 authored by Arvind Yadav's avatar Arvind Yadav Committed by Wolfram Sang

i2c: at91: Handle return value of clk_prepare_enable

clk_prepare_enable() can fail here and we must check its return value.
Also, add a missing clk_disable_unprepare().
Signed-off-by: default avatarArvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: default avatarLudovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 5c8e3ab1
......@@ -1083,13 +1083,17 @@ static int at91_twi_probe(struct platform_device *pdev)
dev_err(dev->dev, "no clock defined\n");
return -ENODEV;
}
clk_prepare_enable(dev->clk);
rc = clk_prepare_enable(dev->clk);
if (rc)
return rc;
if (dev->dev->of_node) {
rc = at91_twi_configure_dma(dev, phy_addr);
if (rc == -EPROBE_DEFER)
if (rc == -EPROBE_DEFER) {
clk_disable_unprepare(dev->clk);
return rc;
}
}
if (!of_property_read_u32(pdev->dev.of_node, "atmel,fifo-size",
&dev->fifo_size)) {
......
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