[PATCH v1 1/1] platform/x86: int3472: Don't leak reference on error

From: Andy Shevchenko
Date: Tue Oct 04 2022 - 08:24:51 EST


The for_each_acpi_consumer_dev() takes a reference to the iterator
and if we break a loop we must drop that reference. This usually
happens when error handling is involved. However it's not the case
for skl_int3472_fill_clk_pdata().

Don't leak reference on error by dropping it properly.

Fixes: 43cf36974d76 ("platform/x86: int3472: Support multiple clock consumers")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/platform/x86/intel/int3472/tps68470.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/intel/int3472/tps68470.c b/drivers/platform/x86/intel/int3472/tps68470.c
index f83e9c393f31..5b8d1a9620a5 100644
--- a/drivers/platform/x86/intel/int3472/tps68470.c
+++ b/drivers/platform/x86/intel/int3472/tps68470.c
@@ -128,15 +128,15 @@ skl_int3472_fill_clk_pdata(struct device *dev, struct tps68470_clk_platform_data
for_each_acpi_consumer_dev(adev, consumer) {
sensor_name = devm_kasprintf(dev, GFP_KERNEL, I2C_DEV_NAME_FORMAT,
acpi_dev_name(consumer));
- if (!sensor_name)
+ if (!sensor_name) {
+ acpi_dev_put(consumer);
return -ENOMEM;
+ }

(*clk_pdata)->consumers[i].consumer_dev_name = sensor_name;
i++;
}

- acpi_dev_put(consumer);
-
return n_consumers;
}

--
2.35.1