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Date:	Tue, 16 Sep 2014 18:10:40 +0200
From:	Krzysztof Kozlowski <>
To:	Sebastian Reichel <>,
	Dmitry Eremin-Solenikov <>,
	David Woodhouse <>,,
Cc:	Krzysztof Kozlowski <>
Subject: [PATCH RESEND 1/2] power: max8925: Fix NULL ptr dereference on memory
 allocation failure

Check the return value of devm_kzalloc() to fix possible NULL pointer
dereference and properly exit the probe() on memory allocation failure.

Signed-off-by: Krzysztof Kozlowski <>
 drivers/power/max8925_power.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c
index b4513f284bbc..0cf237808d47 100644
--- a/drivers/power/max8925_power.c
+++ b/drivers/power/max8925_power.c
@@ -452,13 +452,14 @@ max8925_power_dt_init(struct platform_device *pdev)
 	pdata = devm_kzalloc(&pdev->dev,
 			sizeof(struct max8925_power_pdata),
+	if (!pdata)
+		goto ret;
 	of_property_read_u32(np, "topoff-threshold", &topoff_threshold);
 	of_property_read_u32(np, "batt-detect", &batt_detect);
 	of_property_read_u32(np, "fast-charge", &fast_charge);
 	of_property_read_u32(np, "no-insert-detect", &no_insert_detect);
 	of_property_read_u32(np, "no-temp-support", &no_temp_support);
-	of_node_put(np);
 	pdata->batt_detect = batt_detect;
 	pdata->fast_charge = fast_charge;
@@ -466,6 +467,8 @@ max8925_power_dt_init(struct platform_device *pdev)
 	pdata->no_insert_detect = no_insert_detect;
 	pdata->no_temp_support = no_temp_support;
+	of_node_put(np);
 	return pdata;

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