[PATCH v3 08/22] ACPI: platform_profile: Use `scoped_cond_guard` for platform_profile_choices_show()

[Mario Limonciello <mario.limonciello@xxxxxxx>]

Migrate away from using an interruptible mutex to scoped_cond_guard.

Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
 drivers/acpi/platform_profile.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index cc2037147c0fd..79feb273c1def 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -28,25 +28,21 @@ static ssize_t platform_profile_choices_show(struct device *dev,
 					char *buf)
 {
 	int len = 0;
-	int err, i;
-
-	err = mutex_lock_interruptible(&profile_lock);
-	if (err)
-		return err;
-
-	if (!cur_profile) {
-		mutex_unlock(&profile_lock);
-		return -ENODEV;
-	}
-
-	for_each_set_bit(i, cur_profile->choices, PLATFORM_PROFILE_LAST) {
-		if (len == 0)
-			len += sysfs_emit_at(buf, len, "%s", profile_names[i]);
-		else
-			len += sysfs_emit_at(buf, len, " %s", profile_names[i]);
+	int i;
+
+	scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) {
+		if (!cur_profile)
+			return -ENODEV;
+
+		for_each_set_bit(i, cur_profile->choices, PLATFORM_PROFILE_LAST) {
+			if (len == 0)
+				len += sysfs_emit_at(buf, len, "%s", profile_names[i]);
+			else
+				len += sysfs_emit_at(buf, len, " %s", profile_names[i]);
+		}
 	}
 	len += sysfs_emit_at(buf, len, "\n");
-	mutex_unlock(&profile_lock);
+
 	return len;
 }
 
-- 
2.43.0