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 v3] fs/btrfs: Fix uninitialized variable
Date: Tue, 20 Apr 2021 16:16:26 +0100 [thread overview]
Message-ID: <20210420151626.6045-1-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>
---
v3: catch default as an assertion failure
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 70b23a0d03b1..432509f4b3ac 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:
+ ASSERT(zone);
+ break;
}
ASSERT(zone <= U32_MAX);
--
2.17.1
next reply other threads:[~2021-04-20 15:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 15:16 Khaled ROMDHANI [this message]
2021-04-20 21:04 ` [PATCH v3] fs/btrfs: Fix uninitialized variable kernel test robot
2021-04-21 0:07 ` kernel test robot
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