[media] media: fix MEDIA_IOC_DEVICE_INFO return code
The MEDIA_IOC_DEVICE_INFO ioctl was returning a positive value rather
than a negative error code when failing to copy output parameter to
user-space.
Tested by compilation only.
Signed-off-by: Nicolas Thery <nicolas.thery@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 6f9eb94..d01fcb7 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -59,7 +59,9 @@
info.hw_revision = dev->hw_revision;
info.driver_version = dev->driver_version;
- return copy_to_user(__info, &info, sizeof(*__info));
+ if (copy_to_user(__info, &info, sizeof(*__info)))
+ return -EFAULT;
+ return 0;
}
static struct media_entity *find_entity(struct media_device *mdev, u32 id)