[PATCH RESEND] drm: mipi-dsi: Fix an API misuse in mipi_dsi_device_register_full()

From: Haoxiang Li

Date: Thu Dec 04 2025 - 22:14:59 EST


mipi_dsi_device_alloc() calls device_initialize() to initialize value
"&dsi->dev". Thus "dsi" should be freed using put_device() in error
handling path.

Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index a712e177b350..e47950009126 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -233,7 +233,7 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host,
ret = mipi_dsi_device_add(dsi);
if (ret) {
dev_err(host->dev, "failed to add DSI device %d\n", ret);
- kfree(dsi);
+ put_device(&dsi->dev);
return ERR_PTR(ret);
}

--
2.25.1