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| author |   Jiang Liu <liuj97@gmail.com> | 2013-06-07 00:07:25 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-06 12:12:20 -0700 |
| commit | 65c484609a3b25c35e4edcd5f2c38f98f5226093 (patch) | |
| tree | e9664426eb8d9f17c01f8b79c26a2c655acd85a1 /drivers/staging/zram/zram_drv.c | |
| parent | zram: destroy all devices on error recovery path in zram_init() (diff) | |
| download | linux-dev-65c484609a3b25c35e4edcd5f2c38f98f5226093.tar.xz linux-dev-65c484609a3b25c35e4edcd5f2c38f98f5226093.zip | |
zram: avoid double free in function zram_bvec_write()
When doing a patial write and the whole page is filled with zero,
zram_bvec_write() will free uncmem twice.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/zram/zram_drv.c')
| -rw-r--r-- | drivers/staging/zram/zram_drv.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 3335a6ce1784..f7603617db75 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -272,8 +272,6 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, if (page_zero_filled(uncmem)) { kunmap_atomic(user_mem); - if (is_partial_io(bvec)) - kfree(uncmem); zram->stats.pages_zero++; zram_set_flag(meta, index, ZRAM_ZERO); ret = 0; |