[PATCH v3 11/13] drm/modes: parse_cmdline: Explicitly memset the passed in drm_cmdline_mode struct

[Hans de Goede]

Instead of only setting mode->specified on false on an early exit and
leaving e.g. mode->bpp_specified and mode->refresh_specified as is,
lets be consistent and just zero out the entire passed in struct at
the top of drm_mode_parse_command_line_for_connector()

Changes in v3:
-Drop "mode->specified = false;" line instead of the "return false;" (oops)
 This crasher was reported-by: kernel test robot <lkp at intel.com>

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 drivers/gpu/drm/drm_modes.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index beb764efe6b3..2a4eb619d7ad 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1745,12 +1745,11 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
 	char *bpp_end_ptr = NULL, *refresh_end_ptr = NULL;
 	int i, len, ret;
 
+	memset(mode, 0, sizeof(*mode));
 	mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 
-	if (!mode_option) {
-		mode->specified = false;
+	if (!mode_option)
 		return false;
-	}
 
 	name = mode_option;
 
-- 
2.23.0