From: Khaled ROMDHANI <khaledromdhani216@gmail.com>
To: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com
Cc: Khaled ROMDHANI <khaledromdhani216@gmail.com>,
linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH v2] fs/btrfs: Fix uninitialized variable
Date: Sat, 17 Apr 2021 16:36:16 +0100 [thread overview]
Message-ID: <20210417153616.25056-1-khaledromdhani216@gmail.com> (raw)
As reported by the Coverity static analysis.
The variable zone is not initialized which
may causes a failed assertion.
Addresses-Coverity: ("Uninitialized variables")
Signed-off-by: Khaled ROMDHANI <khaledromdhani216@gmail.com>
---
v2: add a default case as proposed by David Sterba
---
fs/btrfs/zoned.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index eeb3ebe11d7a..82527308d165 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -143,6 +143,9 @@ static inline u32 sb_zone_number(int shift, int mirror)
case 0: zone = 0; break;
case 1: zone = 1ULL << (BTRFS_SB_LOG_FIRST_SHIFT - shift); break;
case 2: zone = 1ULL << (BTRFS_SB_LOG_SECOND_SHIFT - shift); break;
+ default:
+ zone = 0;
+ break;
}
ASSERT(zone <= U32_MAX);
--
2.17.1
next reply other threads:[~2021-04-17 15:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-17 15:36 Khaled ROMDHANI [this message]
2021-04-19 17:32 ` [PATCH v2] fs/btrfs: Fix uninitialized variable David Sterba
2021-04-20 13:20 ` Khaled Romdhani
2021-04-20 10:22 ` Dan Carpenter
2021-04-20 13:39 ` Khaled Romdhani
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