[PATCH 09/14] kdb: use atomic_dec_not_zero()

From	Fabian Frederick <fabf@skynet.be>
Newsgroups	linux.kernel
Subject	[PATCH 09/14] kdb: use atomic_dec_not_zero()
Date	2017-01-30 20:00 +0100
Message-ID	<t5plg-7sP-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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instead of atomic_add_unless(value, -1, 0)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
 kernel/debug/kdb/kdb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index ca18391..095e6d8 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2173,7 +2173,7 @@ static int kdb_disable_nmi(int argc, const char *argv[])
 
 static int kdb_param_enable_nmi(const char *val, const struct kernel_param *kp)
 {
-	if (!atomic_add_unless(&kdb_nmi_disabled, -1, 0))
+	if (!atomic_dec_not_zero(&kdb_nmi_disabled))
 		return -EINVAL;
 	arch_kgdb_ops.enable_nmi(1);
 	return 0;
-- 
2.9.3

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[PATCH 09/14] kdb: use atomic_dec_not_zero() Fabian Frederick <fabf@skynet.be> - 2017-01-30 20:00 +0100

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