github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 10:04:04 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/tegra: dsi: fix device leak on probe

Browse Source 
Make sure to drop the reference taken when looking up the companion
(ganged) device and its driver data during probe().

Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.

Fixes: e94236cde4 ("drm/tegra: dsi: Add ganged mode support")
Fixes: 221e3638fe ("drm/tegra: Fix reference leak in tegra_dsi_ganged_probe")
Cc: stable@vger.kernel.org	# 3.19: 221e3638fe
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20251121164201.13188-1-johan@kernel.org
This commit is contained in:
Johan Hovold 2025-11-21 17:42:01 +01:00 committed by Thierry Reding
parent cd98e73492
commit bfef062695
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/tegra/dsi.c
View File

@ -1542,11 +1542,9 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi)
return -EPROBE_DEFER;
dsi->slave = platform_get_drvdata(gangster);
if (!dsi->slave) {
put_device(&gangster->dev);
put_device(&gangster->dev);
if (!dsi->slave)
return -EPROBE_DEFER;
}
dsi->slave->master = dsi;
}