From 5eb263ef08b5014cfc2539a838f39d2fd3531423 Mon Sep 17 00:00:00 2001
From: Chuhong Yuan <hslester96@gmail.com>
Date: Sat, 9 Nov 2019 16:09:43 +0800
Subject: [PATCH] spi: pxa2xx: Add missed security checks
Git-commit: 5eb263ef08b5014cfc2539a838f39d2fd3531423
Patch-mainline: v5.5-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/spi/spi-pxa2xx.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1592,7 +1592,13 @@ pxa2xx_spi_init_pdata(struct platform_de
}
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->pdev = pdev;
ssp->port_id = pxa2xx_spi_get_port_id(adev);