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42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
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From d89b3f22cf7b6bba8081f6d16c9087019fdcf586 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 18 Nov 2019 16:51:32 +0100
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Subject: [PATCH] drm/modes: parse_cmdline: Explicitly memset the
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passed in drm_cmdline_mode struct
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Commit d1fe276b5115f0d581c3cfe6154633b3547e8aab upstream.
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Instead of only setting mode->specified on false on an early exit and
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leaving e.g. mode->bpp_specified and mode->refresh_specified as is,
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lets be consistent and just zero out the entire passed in struct at
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the top of drm_mode_parse_command_line_for_connector()
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Changes in v3:
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-Drop "mode->specified = false;" line instead of the "return false;" (oops)
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This crasher was reported-by: kernel test robot <lkp@intel.com>
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Acked-by: Maxime Ripard <mripard@kernel.org>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-11-hdegoede@redhat.com
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---
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drivers/gpu/drm/drm_modes.c | 5 ++---
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1 file changed, 2 insertions(+), 3 deletions(-)
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--- a/drivers/gpu/drm/drm_modes.c
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+++ b/drivers/gpu/drm/drm_modes.c
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@@ -1745,12 +1745,11 @@ bool drm_mode_parse_command_line_for_con
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char *bpp_end_ptr = NULL, *refresh_end_ptr = NULL;
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int i, len, ret;
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+ memset(mode, 0, sizeof(*mode));
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mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
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- if (!mode_option) {
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- mode->specified = false;
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+ if (!mode_option)
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return false;
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- }
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name = mode_option;
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