f2fs: fix to avoid accessing invalid fio in f2fs_allocate_data_block()

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[ Upstream commit 25ae837e61 ]

Callers may pass fio parameter with NULL value to f2fs_allocate_data_block(),
so we should make sure accessing fio's field after fio's validation check.

Fixes: f608c38c59 ("f2fs: clean up parameter of f2fs_allocate_data_block()")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Chao Yu 2021-04-02 17:22:23 +08:00 • committed by Greg Kroah-Hartman

parent 1fd6a06410

commit b59194c7ca

1 changed files with 3 additions and 3 deletions

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fs/f2fs/segment.c

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