From 00acc3dc248063f982cfacfbe5e78c0d6797ffef Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 12 Jan 2015 17:12:27 +0100 Subject: [PATCH] gpio: fix memory leak and sleep-while-atomic Fix memory leak and sleep-while-atomic in gpiochip_remove. The memory leak was introduced by afa82fab5e13 ("gpio / ACPI: Move event handling registration to gpiolib irqchip helpers") that moved the release of acpi interrupt resources to gpiochip_irqchip_remove, but by then the resources are no longer accessible as the acpi_gpio_chip has already been freed by acpi_gpiochip_remove. Note that this also fixes a few potential sleep-while-atomics, which has been around since 1425052097b5 ("gpio: add IRQ chip helpers in gpiolib") when the call to gpiochip_irqchip_remove while holding a spinlock was added (a couple of irq-domain paths can end up grabbing mutexes). Fixes: afa82fab5e13 ("gpio / ACPI: Move event handling registration to gpiolib irqchip helpers") Fixes: 1425052097b5 ("gpio: add IRQ chip helpers in gpiolib") Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Linus Walleij --- Reading git-format-patch failed