[PATCH 3.18 038/124] ALSA: seq: Fix race during FIFO resize

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Takashi Iwai commit 2d7d54002e396c180db0c800c1046f0a3c471597 upstream. When a new event is queued while processing to resize the FIFO in snd_seq_fifo_clear(), it may lead to a

[PATCH 3.18 038/124] ALSA: seq: Fix race during FIFO resize

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Takashi Iwai commit 2d7d54002e396c180db0c800c1046f0a3c471597 upstream. When a new event is queued while processing to resize the FIFO in snd_seq_fifo_clear(), it may lead to a use-after-free,