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    Subject[PATCH 10/13] ALSA: sb: Delete an unnecessary check before the function call "snd_emux_free"
    From: Markus Elfring <elfring@users.sourceforge.net>
    Date: Sat, 3 Jan 2015 21:02:32 +0100

    The snd_emux_free() function tests whether its argument is NULL and then
    returns immediately. Thus the test around the call is not needed.

    This issue was detected by using the Coccinelle software.

    Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
    ---
    sound/isa/sb/emu8000_synth.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
    index 95b39be..72332df 100644
    --- a/sound/isa/sb/emu8000_synth.c
    +++ b/sound/isa/sb/emu8000_synth.c
    @@ -103,8 +103,7 @@ static int snd_emu8000_delete_device(struct snd_seq_device *dev)
    hw = dev->driver_data;
    if (hw->pcm)
    snd_device_free(dev->card, hw->pcm);
    - if (hw->emu)
    - snd_emux_free(hw->emu);
    + snd_emux_free(hw->emu);
    snd_util_memhdr_free(hw->memhdr);
    hw->emu = NULL;
    hw->memhdr = NULL;
    --
    2.2.1


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