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authorJohan Hovold <johan@kernel.org>2017-11-20 11:45:46 +0100
committerLee Jones <lee.jones@linaro.org>2018-06-11 13:40:39 +0100
commit2b12dfa124dbadf391cb9a616aaa6b056823bf75 (patch)
tree9f514e17dba27a618a86c86796aefc032c230e96
parentd1cc0ec3da23e44c23712579515494b374f111c9 (diff)
downloadlinux-2b12dfa124dbadf391cb9a616aaa6b056823bf75.tar.bz2
backlight: tps65217_bl: Fix Device Tree node lookup
Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at the parent rather than just matching on its children. This would only cause trouble if the child node is missing while there is an unrelated node named "backlight" elsewhere in the tree. Cc: stable <stable@vger.kernel.org> # 3.7 Fixes: eebfdc17cc6c ("backlight: Add TPS65217 WLED driver") Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/video/backlight/tps65217_bl.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c
index 380917c86276..762e3feed097 100644
--- a/drivers/video/backlight/tps65217_bl.c
+++ b/drivers/video/backlight/tps65217_bl.c
@@ -184,11 +184,11 @@ static struct tps65217_bl_pdata *
tps65217_bl_parse_dt(struct platform_device *pdev)
{
struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
- struct device_node *node = of_node_get(tps->dev->of_node);
+ struct device_node *node;
struct tps65217_bl_pdata *pdata, *err;
u32 val;
- node = of_find_node_by_name(node, "backlight");
+ node = of_get_child_by_name(tps->dev->of_node, "backlight");
if (!node)
return ERR_PTR(-ENODEV);