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mfd: tps6594: Add null pointer check to tps6594_device_init()

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[ Upstream commit 825906f2eb ]

devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Fixes: 325bec7157 ("mfd: tps6594: Add driver for TI TPS6594 PMIC")
Suggested-by: Lee Jones <lee@kernel.org>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20231208033320.49345-1-chentao@kylinos.cn
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kunwu Chan 2023-12-08 11:33:20 +08:00 committed by Greg Kroah-Hartman
parent bd4d5b6fe1
commit f53d8c6c6e
1 changed files with 3 additions and 0 deletions
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3
drivers/mfd/tps6594-core.c
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@ -433,6 +433,9 @@ int tps6594_device_init(struct tps6594 *tps, bool enable_crc)
tps6594_irq_chip.name = devm_kasprintf(dev, GFP_KERNEL, "%s-%ld-0x%02x", tps6594_irq_chip.name = devm_kasprintf(dev, GFP_KERNEL, "%s-%ld-0x%02x",
dev->driver->name, tps->chip_id, tps->reg); dev->driver->name, tps->chip_id, tps->reg);
if (!tps6594_irq_chip.name)
return -ENOMEM;
ret = devm_regmap_add_irq_chip(dev, tps->regmap, tps->irq, IRQF_SHARED | IRQF_ONESHOT, ret = devm_regmap_add_irq_chip(dev, tps->regmap, tps->irq, IRQF_SHARED | IRQF_ONESHOT,
0, &tps6594_irq_chip, &tps->irq_data); 0, &tps6594_irq_chip, &tps->irq_data);
if (ret) if (ret)