[PATCH v10 07/22] ACPI: platform_profile: Move matching string for new profile out of mutex

Mario Limonciello
2024-12-06T03:25:48Z

Holding the mutex is not necessary while scanning the string passed into
platform_profile_store().

Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/acpi/platform_profile.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 4f5623fc27c09..45ffd85a71dd5 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -83,6 +83,11 @@ static ssize_t platform_profile_store(struct device *dev,
{
int err, i;

+ /* Scan for a matching profile */
+ i = sysfs_match_string(profile_names, buf);
+ if (i < 0)
+ return -EINVAL;
+
err = mutex_lock_interruptible(&profile_lock);
if (err)
return err;
@@ -92,13 +97,6 @@ static ssize_t platform_profile_store(struct device *dev,
return -ENODEV;
}

- /* Scan for a matching profile */
- i = sysfs_match_string(profile_names, buf);
- if (i < 0) {
- mutex_unlock(&profile_lock);
- return -EINVAL;
- }
-
/* Check that platform supports this profile choice */
if (!test_bit(i, cur_profile->choices)) {
mutex_unlock(&profile_lock);
--
2.43.0