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Anton Vasilyev authored
If ioh_gpio_probe() fails on devm_irq_alloc_descs() then chip may point to any element of chip_save array, so reverse iteration from pointer chip may become chip_save[-1] and gpiochip_remove() will operate with wrong memory. The patch fix the error path of ioh_gpio_probe() to correctly bypass chip_save array. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Anton Vasilyev <vasilyev@ispras.ru> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org>
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