[PATCH 4.9 60/86] drm/omap: Fix error handling path in omap_dmm_probe()

From: Greg Kroah-Hartman
Date: Fri Feb 02 2018 - 12:10:11 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>


[ Upstream commit 8677b1ac2db021ab30bb1fa34f1e56ebe0051ec3 ]

If we don't find a matching device node, we must free the memory allocated
in 'omap_dmm' a few lines above.

Fixes: 7cb0d6c17b96 ("drm/omap: fix TILER on OMAP5")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -638,7 +638,8 @@ static int omap_dmm_probe(struct platfor
match = of_match_node(dmm_of_match, dev->dev.of_node);
if (!match) {
dev_err(&dev->dev, "failed to find matching device node\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto fail;
}

omap_dmm->plat_data = match->data;