6.6-stable review patch. If anyone has any objections, please let me know.
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From: Haotian Zhang vulab@iscas.ac.cn
[ Upstream commit 1b58acfd067ca16116b9234cd6b2d30cc8ab7502 ]
When da9055_device_init() fails after regmap_add_irq_chip() succeeds but mfd_add_devices() fails, the error handling path only calls mfd_remove_devices() but forgets to call regmap_del_irq_chip(). This results in a resource leak.
Fix this by adding regmap_del_irq_chip() to the error path so that resources are released properly.
Fixes: 2896434cf272 ("mfd: DA9055 core driver") Signed-off-by: Haotian Zhang vulab@iscas.ac.cn Link: https://patch.msgid.link/20251010011737.1078-1-vulab@iscas.ac.cn Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/da9055-core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c index 768302e05baa1..bdf6401d32d76 100644 --- a/drivers/mfd/da9055-core.c +++ b/drivers/mfd/da9055-core.c @@ -388,6 +388,7 @@ int da9055_device_init(struct da9055 *da9055)
err: mfd_remove_devices(da9055->dev); + regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data); return ret; }