linux-kernel - [PATCH 22/30] ACPI: OSL: Add missing annotation for acpi_os_acquire

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Date:   Sun, 23 Feb 2020 23:17:03 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     boqun.feng@...il.com
Cc:     jbi.octave@...il.com, linux-kernel@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        linux-acpi@...r.kernel.org (open list:ACPI)
Subject: [PATCH 22/30] ACPI: OSL: Add missing annotation for acpi_os_acquire_lock()

Sparse reports a warning at acpi_os_acquire_lock()

warning: context imbalance in acpi_os_acquire_lock() - unexpected unlock

The root cause is the missing annotation at acpi_os_acquire_lock()
Add the missing annotation __acquires(lockp)

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 drivers/acpi/osl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 41168c027a5a..7094abc5ffc6 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1598,6 +1598,7 @@ void acpi_os_delete_lock(acpi_spinlock handle)
  */
 
 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp)
+	__acquires(lockp)
 {
 	acpi_cpu_flags flags;
 	spin_lock_irqsave(lockp, flags);
-- 
2.24.1