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-rw-r--r--bsd-core/drm_ioctl.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/bsd-core/drm_ioctl.c b/bsd-core/drm_ioctl.c
index 328f1d1e..d6af4284 100644
--- a/bsd-core/drm_ioctl.c
+++ b/bsd-core/drm_ioctl.c
@@ -232,23 +232,27 @@ int drm_getstats(drm_device_t *dev, void *data, struct drm_file *file_priv)
int drm_setversion(drm_device_t *dev, void *data, struct drm_file *file_priv)
{
drm_set_version_t *sv = data;
- drm_set_version_t retv;
+ drm_set_version_t ver;
int if_version;
- retv.drm_di_major = DRM_IF_MAJOR;
- retv.drm_di_minor = DRM_IF_MINOR;
- retv.drm_dd_major = dev->driver.major;
- retv.drm_dd_minor = dev->driver.minor;
-
- if (sv->drm_di_major != -1) {
- if (sv->drm_di_major != DRM_IF_MAJOR ||
- sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
+ /* Save the incoming data, and set the response before continuing
+ * any further.
+ */
+ ver = *sv;
+ sv->drm_di_major = DRM_IF_MAJOR;
+ sv->drm_di_minor = DRM_IF_MINOR;
+ sv->drm_dd_major = dev->driver.major;
+ sv->drm_dd_minor = dev->driver.minor;
+
+ if (ver.drm_di_major != -1) {
+ if (ver.drm_di_major != DRM_IF_MAJOR ||
+ ver.drm_di_minor < 0 || ver.drm_di_minor > DRM_IF_MINOR) {
return EINVAL;
}
- if_version = DRM_IF_VERSION(sv->drm_di_major,
- sv->drm_dd_minor);
+ if_version = DRM_IF_VERSION(ver.drm_di_major,
+ ver.drm_dd_minor);
dev->if_version = DRM_MAX(if_version, dev->if_version);
- if (sv->drm_di_minor >= 1) {
+ if (ver.drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
*/
@@ -256,10 +260,10 @@ int drm_setversion(drm_device_t *dev, void *data, struct drm_file *file_priv)
}
}
- if (sv->drm_dd_major != -1) {
- if (sv->drm_dd_major != dev->driver.major ||
- sv->drm_dd_minor < 0 ||
- sv->drm_dd_minor > dev->driver.minor)
+ if (ver.drm_dd_major != -1) {
+ if (ver.drm_dd_major != dev->driver.major ||
+ ver.drm_dd_minor < 0 ||
+ ver.drm_dd_minor > dev->driver.minor)
{
return EINVAL;
}