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soundwire: debugfs: simplify with cleanup.h

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Allocate the memory with scoped/cleanup.h to reduce error handling and
make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240703-soundwire-cleanup-h-v1-9-24fa0dbb948f@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2024-07-03 12:16:01 +02:00 committed by Vinod Koul
parent b72d4af98c
commit fdd3d14ca3
1 changed files with 2 additions and 5 deletions
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7
drivers/soundwire/debugfs.c
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@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
// Copyright(c) 2017-2019 Intel Corporation.
#include <linux/cleanup.h>
#include <linux/device.h>
#include <linux/debugfs.h>
#include <linux/firmware.h>
@ -49,18 +50,16 @@ static ssize_t sdw_sprintf(struct sdw_slave *slave,
static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
{
struct sdw_slave *slave = s_file->private;
char *buf;
ssize_t ret;
int i, j;
buf = kzalloc(RD_BUF, GFP_KERNEL);
char *buf __free(kfree) = kzalloc(RD_BUF, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = pm_runtime_get_sync(&slave->dev);
if (ret < 0 && ret != -EACCES) {
pm_runtime_put_noidle(&slave->dev);
kfree(buf);
return ret;
}
@ -132,8 +131,6 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put(&slave->dev);
kfree(buf);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(sdw_slave_reg);