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| author | Jiang Liu <liuj97@gmail.com> | 2013-06-07 00:07:25 +0800 |
|---|---|---|
| committer | Simon Shields <keepcalm444@gmail.com> | 2016-06-12 21:19:40 +1000 |
| commit | 0a4ee7ec98dfc4e703a0277dffc8b4733a7a8da5 (patch) | |
| tree | e0a6a610faa5d79ceeeed761b8a10b77ecae6f3b /drivers/staging | |
| parent | 750c4a7e63dbb0b893680b5ba77add8258a36f56 (diff) | |
| download | kernel_samsung_smdk4412-0a4ee7ec98dfc4e703a0277dffc8b4733a7a8da5.tar.gz kernel_samsung_smdk4412-0a4ee7ec98dfc4e703a0277dffc8b4733a7a8da5.tar.bz2 kernel_samsung_smdk4412-0a4ee7ec98dfc4e703a0277dffc8b4733a7a8da5.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.
Change-Id: I233f44846f29dbf11e05d277506137bc7f11bbd9
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>
Git-commit: 65c484609a3b25c35e4edcd5f2c38f98f5226093
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Diffstat (limited to 'drivers/staging')
| -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 ad5e907148b..1088ca45f4a 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; |