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authorJohan Hovold <johan@kernel.org>2018-01-09 04:17:48 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-01-09 04:40:55 +0300
commitdcaf12a8b0bbdbfcfa2be8dff2c4948d9844b4ad (patch)
tree604d544d6281b0054e3f3577e0b903e361c1be1e /drivers/input/misc/twl6040-vibra.c
parent5b189201993ab03001a398de731045bfea90c689 (diff)
downloadlinux-dcaf12a8b0bbdbfcfa2be8dff2c4948d9844b4ad.tar.xz
Input: twl6040-vibra - fix child-node lookup
Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at parent rather than just matching on its children. Later sanity checks on node properties (which would likely be missing) should prevent this from causing much trouble however, especially as the original premature free of the parent node has already been fixed separately (but that "fix" was apparently never backported to stable). Fixes: e7ec014a47e4 ("Input: twl6040-vibra - update for device tree support") Fixes: c52c545ead97 ("Input: twl6040-vibra - fix DT node memory management") Cc: stable <stable@vger.kernel.org> # 3.6 Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: H. Nikolaus Schaller <hns@goldelico.com> (on Pyra OMAP5 hardware) Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc/twl6040-vibra.c')
-rw-r--r--drivers/input/misc/twl6040-vibra.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index 5690eb7ff954..15e0d352c4cc 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -248,8 +248,7 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
int vddvibr_uV = 0;
int error;
- of_node_get(twl6040_core_dev->of_node);
- twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node,
+ twl6040_core_node = of_get_child_by_name(twl6040_core_dev->of_node,
"vibra");
if (!twl6040_core_node) {
dev_err(&pdev->dev, "parent of node is missing?\n");