diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2016-02-28 17:32:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-09 15:34:51 -0800 |
| commit | d1c623c9c264c6cb045015900f8ce1e60b4d2c7d (patch) | |
| tree | 908e4ece82b4f27efaf49653b7be4480d7d4358b /arch/arm/mach-s3c64xx/dev-uart.c | |
| parent | 25e8618619a5a46aae253e1cc68eeaa0d44d2f52 (diff) | |
arm/arm64: KVM: Fix ioctl error handling
commit 4cad67fca3fc952d6f2ed9e799621f07666a560f upstream.
Calling return copy_to_user(...) in an ioctl will not
do the right thing if there's a pagefault:
copy_to_user returns the number of bytes not copied
in this case.
Fix up kvm to do
return copy_to_user(...)) ? -EFAULT : 0;
everywhere.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/mach-s3c64xx/dev-uart.c')
0 files changed, 0 insertions, 0 deletions