samples: vfio-mdev: fix error handing in mdpy_fb_probe()
BugLink: https://bugs.launchpad.net/bugs/1932957
[ Upstream commit 752774ce77 ]
Fix to return a negative error code from the framebuffer_alloc() error
handling case instead of 0, also release regions in some error handing
cases.
Fixes: cacade1946 ("sample: vfio mdev display - guest driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Message-Id: <20210520133641.1421378-1-weiyongjun1@huawei.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>
4e5575620c