From 1201d68f4781141411e734315f22457e6ea2cfcb Mon Sep 17 00:00:00 2001 From: Shuo Liu Date: Wed, 10 Mar 2021 23:37:08 +0800 Subject: [PATCH] virt: acrn: Correct type casting of argument of copy_from_user() hsm.c:336:50: warning: incorrect type in argument 2 (different address spaces) hsm.c:336:50: expected void const [noderef] __user *from hsm.c:336:50: got void * This patch fixes above sparse warning. Fixes: 3d679d5aec64 ("virt: acrn: Introduce interfaces to query C-states and P-states allowed by hypervisor") Reported-by: kernel test robot Signed-off-by: Shuo Liu Link: https://lore.kernel.org/r/20210310153708.17451-1-shuo.a.liu@intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/virt/acrn/hsm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/virt/acrn/hsm.c b/drivers/virt/acrn/hsm.c index 6996ea62..130e12b 100644 --- a/drivers/virt/acrn/hsm.c +++ b/drivers/virt/acrn/hsm.c @@ -333,7 +333,7 @@ static long acrn_dev_ioctl(struct file *filp, unsigned int cmd, acrn_ioreq_request_clear(vm); break; case ACRN_IOCTL_PM_GET_CPU_STATE: - if (copy_from_user(&cstate_cmd, (void *)ioctl_param, + if (copy_from_user(&cstate_cmd, (void __user *)ioctl_param, sizeof(cstate_cmd))) return -EFAULT; -- 2.7.4