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From: Uros Bizjak <ubizjak@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH 1/2] ucount: Fix atomic_long_inc_below argument type
Date: Wed, 13 Jul 2022 17:54:04 +0200	[thread overview]
Message-ID: <20220713155405.80663-2-ubizjak@gmail.com> (raw)
In-Reply-To: <20220713155405.80663-1-ubizjak@gmail.com>

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@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.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


  reply	other threads:[~2022-07-13 15:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-13 15:54 [PATCH 0/2] ucount: Fix and improve atomic_long_inc_below Uros Bizjak
2022-07-13 15:54 ` Uros Bizjak [this message]
2022-07-15 18:23   ` [PATCH 1/2] ucount: Fix atomic_long_inc_below argument type Eric W. Biederman
2022-07-13 15:54 ` [PATCH 2/2] ucount: Use atomic_long_try_cmpxchg in atomic_long_inc_below Uros Bizjak
2022-07-15 18:25 ` [PATCH 0/2] ucount: Fix and improve atomic_long_inc_below Eric W. Biederman

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