commit 8579d2d7779d7ff41ea2a0183015e0e5038f1043
author Clemens Ladisch <clemens@ladisch.de> Wed Oct 21 09:09:38 2009 +0200
committer Takashi Iwai <tiwai@suse.de> Tue Nov 10 16:20:43 2009 +0100
tree a194af444f11846d078ca3fb87bdb61f5188464e
parent dede17b8e931eeaa38b0288e8d545d558d904942

sound: rawmidi: fix double init when opening MIDI device with O_APPEND

Commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a in 2.6.30 moved the
substream initialization code to where it would be executed every time
the substream is opened.

This had the consequence that any further opening would drop and leak
the data in the existing buffer, and that the device driver's open
callback would be called multiple times, unexpectedly.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>