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| author | Damien Le Moal <damien.lemoal@wdc.com> | 2020-06-08 13:20:59 +0900 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-06-17 12:13:08 -0400 |
| commit | c69cb1d17b6258830b0a97dde73525c1006898f8 (patch) | |
| tree | 4ade1dea14e8f382fb7ae547648393f6a89c5c71 | |
| parent | b3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff) | |
| download | linux-stable-c69cb1d17b6258830b0a97dde73525c1006898f8.tar.gz linux-stable-c69cb1d17b6258830b0a97dde73525c1006898f8.tar.bz2 linux-stable-c69cb1d17b6258830b0a97dde73525c1006898f8.zip | |
dm zoned: fix uninitialized pointer dereference
Make sure that the local variable rzone in dmz_do_reclaim() is always
initialized before being used for printing debug messages.
Fixes: f97809aec589 ("dm zoned: per-device reclaim")
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-zoned-reclaim.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/md/dm-zoned-reclaim.c b/drivers/md/dm-zoned-reclaim.c index 2261b4dd60b7..dd1eebf6e50f 100644 --- a/drivers/md/dm-zoned-reclaim.c +++ b/drivers/md/dm-zoned-reclaim.c @@ -377,6 +377,7 @@ static int dmz_do_reclaim(struct dmz_reclaim *zrc) dmz_metadata_label(zmd), zrc->dev_idx); return -EBUSY; } + rzone = dzone; start = jiffies; if (dmz_is_cache(dzone) || dmz_is_rnd(dzone)) { @@ -391,8 +392,6 @@ static int dmz_do_reclaim(struct dmz_reclaim *zrc) */ ret = dmz_reclaim_rnd_data(zrc, dzone); } - rzone = dzone; - } else { struct dm_zone *bzone = dzone->bzone; sector_t chunk_block = 0; @@ -415,7 +414,6 @@ static int dmz_do_reclaim(struct dmz_reclaim *zrc) * be later reclaimed. */ ret = dmz_reclaim_seq_data(zrc, dzone); - rzone = dzone; } } out: |