From: Hosung Kim <hosung0.kim@samsung.com>
Date: Wed, 12 Sep 2018 01:44:12 +0000 (+0900)
Subject: [ERD][NEUS7920-76] [COMMON] lib: dss: add missing logging for spin_trylock
X-Git-Tag: MMI-QSAS30.62-33-3~759
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=730f4fbf1f79bdf8b9765c7ba725c12fc02362f5;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

[ERD][NEUS7920-76] [COMMON] lib: dss: add missing logging for spin_trylock

This commit adds missing logging when using spin_trylock.
It was logging only exit(en = 3) before when using spin_trylock.

Change-Id: I8776a20846f6b1bfca5da7e77f051c9a3f28c9b5
Signed-off-by: Hosung Kim <hosung0.kim@samsung.com>
---

diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index b110f1998952..3b6316dfc201 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -87,7 +87,9 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 {
 	preempt_disable();
 	if (do_raw_spin_trylock(lock)) {
+		dbg_snapshot_spinlock(lock, 1);
 		spin_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+		dbg_snapshot_spinlock(lock, 2);
 		return 1;
 	}
 	preempt_enable();