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| author |   Shuo Liu <shuo.a.liu@intel.com> | 2021-03-10 23:37:08 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 16:59:50 +0100 |
| commit | 1201d68f4781141411e734315f22457e6ea2cfcb (patch) | |
| tree | b4d23de51bc3030657891a28179c6b2f53c35fb5 /drivers/virt | |
| parent | virt: acrn: Use EPOLLIN instead of POLLIN (diff) | |
| download | linux-dev-1201d68f4781141411e734315f22457e6ea2cfcb.tar.xz linux-dev-1201d68f4781141411e734315f22457e6ea2cfcb.zip | |
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 <lkp@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210310153708.17451-1-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/virt')
| -rw-r--r-- | drivers/virt/acrn/hsm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/virt/acrn/hsm.c b/drivers/virt/acrn/hsm.c index 6996ea6219e5..130e12b8652a 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; |