From: Colin King <colin.king@canonical.com>
To: Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] sbitmap: initialize weight to zero
Date: Mon, 19 Sep 2016 14:34:08 +0100 [thread overview]
Message-ID: <20160919133408.25559-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Variable weight is not being initialized to zero before it is
used to compute the weight sum. Ensure it is initialized to zero.
Found with static analysis with cppcheck:
[lib/sbitmap.c:177]: (error) Uninitialized variable: weight
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
lib/sbitmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index e408089..2cecf05 100644
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -169,7 +169,7 @@ EXPORT_SYMBOL_GPL(sbitmap_any_bit_clear);
unsigned int sbitmap_weight(const struct sbitmap *sb)
{
- unsigned int i, weight;
+ unsigned int i, weight = 0;
for (i = 0; i < sb->map_nr; i++) {
const struct sbitmap_word *word = &sb->map[i];
--
2.9.3
next reply other threads:[~2016-09-19 13:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-19 13:34 Colin King [this message]
2016-09-19 14:20 ` [PATCH] sbitmap: initialize weight to zero Jens Axboe
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