linux-kernel - [PATCH 1/2] ucount: Fix atomic_long_inc

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Date:   Wed, 13 Jul 2022 17:54:04 +0200
From:   Uros Bizjak <ubizjak@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Uros Bizjak <ubizjak@...il.com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [PATCH 1/2] ucount: Fix atomic_long_inc_below argument type

The type of u argument of atomic_long_inc_below should be long
to avoid unwanted truncation to int.

Fixes: f9c82a4ea89c ("Increase size of ucounts to atomic_long_t")
Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Cc: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 kernel/ucount.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/ucount.c b/kernel/ucount.c
index 06ea04d44685..974ac1585009 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -216,7 +216,7 @@ void put_ucounts(struct ucounts *ucounts)
 	}
 }
 
-static inline bool atomic_long_inc_below(atomic_long_t *v, int u)
+static inline bool atomic_long_inc_below(atomic_long_t *v, long u)
 {
 	long c, old;
 	c = atomic_long_read(v);
-- 
2.35.3