Commit d6cb7722 authored Mar 12, 2019 by Aditya Pakki Committed by Andy Shevchenko Mar 18, 2019

pinctrl: baytrail: Fix potential NULL pointer dereference



saved-context in byt_gpio_probe is allocated via devm_kcalloc and is
used without checking for NULL in later functions. This patch avoids
such a scenario.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

parent 9e98c678

drivers/pinctrl/intel/pinctrl-baytrail.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1710,6 +1710,8 @@ static int byt_gpio_probe(struct byt_gpio *vg)
		#ifdef CONFIG_PM_SLEEP
		vg->saved_context = devm_kcalloc(&vg->pdev->dev, gc->ngpio,
		sizeof(*vg->saved_context), GFP_KERNEL);
		if (!vg->saved_context)
		return -ENOMEM;
		#endif
		ret = devm_gpiochip_add_data(&vg->pdev->dev, gc, vg);
		if (ret) {