[PATCH 5.3 024/197] drm/komeda: prevent memory leak in komeda_wb_connector_add

[Greg Kroah-Hartman]

From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>

[ Upstream commit a0ecd6fdbf5d648123a7315c695fb6850d702835 ]

In komeda_wb_connector_add if drm_writeback_connector_init fails the
allocated memory for kwb_conn should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@xxxxxxx>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20190925043031.32308-1-navid.emamdoost@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
index 23fbee268119f..b72840c06ab76 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
@@ -165,8 +165,10 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
 					   &komeda_wb_encoder_helper_funcs,
 					   formats, n_formats);
 	komeda_put_fourcc_list(formats);
-	if (err)
+	if (err) {
+		kfree(kwb_conn);
 		return err;
+	}
 
 	drm_connector_helper_add(&wb_conn->base, &komeda_wb_conn_helper_funcs);
 
-- 
2.20.1