From: Yang Yingliang yangyingliang@huawei.com
[ Upstream commit 59a61e69c4252b4e8ecd15e752b0d2337f0121b7 ]
irq allocated with devm_request_irq() will be freed in devm_irq_release(), using free_irq() in ->remove() will causes a dangling pointer, and a subsequent double free. So remove the free_irq() in svc_i3c_master_remove().
Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com Reviewed-by: Miquel Raynal miquel.raynal@bootlin.com Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Link: https://lore.kernel.org/r/20210602084935.3977636-1-yangyingliang@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i3c/master/svc-i3c-master.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c index 1f6ba4221817..eeb49b5d90ef 100644 --- a/drivers/i3c/master/svc-i3c-master.c +++ b/drivers/i3c/master/svc-i3c-master.c @@ -1448,7 +1448,6 @@ static int svc_i3c_master_remove(struct platform_device *pdev) if (ret) return ret;
- free_irq(master->irq, master); clk_disable_unprepare(master->pclk); clk_disable_unprepare(master->fclk); clk_disable_unprepare(master->sclk);