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spi: pxa2xx: Add missed security checks 

pxa2xx_spi_init_pdata misses checks for devm_clk_get and
platform_get_irq.
Add checks for them to fix the bugs.

Since ssp->clk and ssp->irq are used in probe, they are mandatory here.
So we cannot use _optional() for devm_clk_get and platform_get_irq.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191109080943.30428-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chuhong Yuan 2019-11-09 16:09:43 +08:00 committed by Mark Brown
parent 69c23dbf5f
commit 5eb263ef08
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1 changed files with 6 additions and 0 deletions
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6
drivers/spi/spi-pxa2xx.c
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@ -1557,7 +1557,13 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
#endif
ssp->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(ssp->clk))
return NULL;
ssp->irq = platform_get_irq(pdev, 0);
if (ssp->irq < 0)
return NULL;
ssp->type = type;
ssp->dev = &pdev->dev;
ssp->port_id = pxa2xx_spi_get_port_id(&pdev->dev);