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| author | Purva Yeshi <purvayeshi550@gmail.com> | 2025-07-10 10:41:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 17:28:28 +0300 |
| commit | d386c8e4e587c910b97caee9bd25732729bd7ed3 (patch) | |
| tree | 20704bfae76903b8c04b436bddc3eae622a7decc /drivers/md | |
| parent | b0cab3d9c70d67fd91c7366be1aa8905c4474956 (diff) | |
| download | linux-d386c8e4e587c910b97caee9bd25732729bd7ed3.tar.xz | |
md: dm-zoned-target: Initialize return variable r to avoid uninitialized use
[ Upstream commit 487767bff572d46f7c37ad846c4078f6d6c9cc55 ]
Fix Smatch-detected error:
drivers/md/dm-zoned-target.c:1073 dmz_iterate_devices()
error: uninitialized symbol 'r'.
Smatch detects a possible use of the uninitialized variable 'r' in
dmz_iterate_devices() because if dmz->nr_ddevs is zero, the loop is
skipped and 'r' is returned without being set, leading to undefined
behavior.
Initialize 'r' to 0 before the loop. This ensures that if there are no
devices to iterate over, the function still returns a defined value.
Signed-off-by: Purva Yeshi <purvayeshi550@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-zoned-target.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index b487f7acc860..36e55a5bcb0d 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -1062,7 +1062,7 @@ static int dmz_iterate_devices(struct dm_target *ti, struct dmz_target *dmz = ti->private; unsigned int zone_nr_sectors = dmz_zone_nr_sectors(dmz->metadata); sector_t capacity; - int i, r; + int i, r = 0; for (i = 0; i < dmz->nr_ddevs; i++) { capacity = dmz->dev[i].capacity & ~(zone_nr_sectors - 1); |