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    Subject[PATCH 08/15] sysfs: kill unnecessary NULL pointer check in sysfs_release()
    Date
    From
    In sysfs_release(), sysfs_buffer pointed to by filp->private_data is
    guaranteed to exist. Kill the unnecessary NULL check. This also
    makes the code more consistent with the counterpart in fs/sysfs/bin.c.

    Signed-off-by: Tejun Heo <htejun@gmail.com>
    ---
    fs/sysfs/file.c | 9 ++++-----
    1 files changed, 4 insertions(+), 5 deletions(-)

    diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
    index 73333dc..8f1ebd8 100644
    --- a/fs/sysfs/file.c
    +++ b/fs/sysfs/file.c
    @@ -311,11 +311,10 @@ static int sysfs_release(struct inode * inode, struct file * filp)
    {
    struct sysfs_buffer *buffer = filp->private_data;

    - if (buffer) {
    - if (buffer->page)
    - free_page((unsigned long)buffer->page);
    - kfree(buffer);
    - }
    + if (buffer->page)
    + free_page((unsigned long)buffer->page);
    + kfree(buffer);
    +
    return 0;
    }

    --
    1.5.0.3

    -
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