From: Kory Maincent <kory.maincent@bootlin.com>
To: Jani Nikula <jani.nikula@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Chris Wilson <chris@chris-wilson.co.uk>,
Eric Anholt <eric@anholt.net>, Dave Airlie <airlied@redhat.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Louis Chauvet <louis.chauvet@bootlin.com>,
Mark Yacoub <markyacoub@google.com>,
Sean Paul <seanpaul@google.com>,
intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Simona Vetter <simona.vetter@ffwll.ch>,
Kory Maincent <kory.maincent@bootlin.com>,
stable@vger.kernel.org
Subject: [PATCH 2/3] drm/i915/display/intel_lvds: Drop redundant manual cleanup on init failure
Date: Wed, 03 Jun 2026 10:59:53 +0200 [thread overview]
Message-ID: <20260603-fix_i915-v1-2-7479ff64e705@bootlin.com> (raw)
In-Reply-To: <20260603-fix_i915-v1-0-7479ff64e705@bootlin.com>
intel_lvds_init() had a goto-based error path that manually called
drm_connector_cleanup(), drm_encoder_cleanup(), kfree() and
intel_connector_free() when no LVDS panel mode could be found.
Once drm_connector_init_with_ddc() and drm_encoder_init() have been
called, the DRM core takes ownership of these objects and will invoke
their .destroy callbacks (intel_connector_destroy and
intel_encoder_destroy) during device teardown. The manual cleanup in
the failed: label is therefore redundant.
Remove it and replace the goto with a simple early return.
Cc: stable@vger.kernel.org
Fixes: 79e539453b34e ("DRM: i915: add mode setting support")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
Not tested as I don't have such hardware.
---
drivers/gpu/drm/i915/display/intel_lvds.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_lvds.c b/drivers/gpu/drm/i915/display/intel_lvds.c
index c8098104d853a..2a1301eda5fe5 100644
--- a/drivers/gpu/drm/i915/display/intel_lvds.c
+++ b/drivers/gpu/drm/i915/display/intel_lvds.c
@@ -990,8 +990,10 @@ void intel_lvds_init(struct intel_display *display)
mutex_unlock(&display->drm->mode_config.mutex);
/* If we still don't have a mode after all that, give up. */
- if (!intel_panel_preferred_fixed_mode(connector))
- goto failed;
+ if (!intel_panel_preferred_fixed_mode(connector)) {
+ drm_dbg_kms(display->drm, "No LVDS modes found, disabling.\n");
+ return;
+ }
intel_panel_init(connector, drm_edid);
@@ -1004,12 +1006,4 @@ void intel_lvds_init(struct intel_display *display)
lvds_encoder->a3_power = lvds & LVDS_A3_POWER_MASK;
return;
-
-failed:
- drm_dbg_kms(display->drm, "No LVDS modes found, disabling.\n");
- drm_connector_cleanup(&connector->base);
- drm_encoder_cleanup(&encoder->base);
- kfree(lvds_encoder);
- intel_connector_free(connector);
- return;
}
--
2.43.0
next prev parent reply other threads:[~2026-06-03 9:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 8:59 [PATCH 0/3] drm/i915: Fix double cleanup in error paths Kory Maincent
2026-06-03 8:59 ` [PATCH 1/3] drm/i915/display/intel_sdvo: Fix double connector destroy " Kory Maincent
2026-06-04 1:52 ` Claude review: " Claude Code Review Bot
2026-06-03 8:59 ` Kory Maincent [this message]
2026-06-04 1:52 ` Claude review: drm/i915/display/intel_lvds: Drop redundant manual cleanup on init failure Claude Code Review Bot
2026-06-03 8:59 ` [PATCH 3/3] drm/i915/display/intel_dp: Drop redundant intel_dp_aux_fini() " Kory Maincent
2026-06-03 11:58 ` Imre Deak
2026-06-04 1:52 ` Claude review: " Claude Code Review Bot
2026-06-03 16:35 ` [PATCH 0/3] drm/i915: Fix double cleanup in error paths Kory Maincent
2026-06-04 1:52 ` Claude review: " Claude Code Review Bot
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