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f2fs: compress: fix to avoid memory leak on cc->cpages 

Memory allocated for storing compressed pages' poitner should be
released after f2fs_write_compressed_pages(), otherwise it will
cause memory leak issue.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Fixes: 4c8ff7095b ("f2fs: support data compression")
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2020-07-20 16:52:50 +08:00 committed by Jaegeuk Kim
parent 3357af8f1a
commit 02772fbfcb
1 changed files with 2 additions and 0 deletions
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2
fs/f2fs/compress.c
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@ -1385,6 +1385,8 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
err = f2fs_write_compressed_pages(cc, submitted,
wbc, io_type);
cops->destroy_compress_ctx(cc);
kfree(cc->cpages);
cc->cpages = NULL;
if (!err)
return 0;
f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);