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3fa24cc540
This reverts commit 686662c6f1.
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:620
in_atomic(): 1, irqs_disabled(): 128, pid: 385, name: FastMixer
2 locks held by FastMixer/385:
#0: (snd_pcm_link_rwlock){......}, at: [<ffffff9008f4130c>] snd_pcm_stream_lock+0x5c/0x68
#1: (&(&substream->self_group.lock)->rlock){......}, at: [<ffffff9008f41314>] snd_pcm_stream_lock+0x64/0x68
CPU: 4 PID: 385 Comm: FastMixer Not tainted 4.4.120 #4996
Hardware name: Rockchip RK3399 Excavator Board edp (Android) (DT)
Call trace:
[<ffffff900808cf7c>] dump_backtrace+0x0/0x2b4
[<ffffff900808d244>] show_stack+0x14/0x1c
[<ffffff90085670bc>] dump_stack+0xa8/0xd8
[<ffffff90080ead48>] ___might_sleep+0x178/0x17c
[<ffffff90080eae08>] __might_sleep+0xbc/0xd4
[<ffffff900935a6d0>] mutex_lock_nested+0xa4/0x504
[<ffffff9008fa431c>] rockchip_i2s_trigger+0x164/0x3d0
[<ffffff9008f89960>] soc_pcm_trigger+0x188/0x1b8
[<ffffff9008f3df74>] snd_pcm_do_start+0x54/0x68
[<ffffff9008f3ddcc>] snd_pcm_action_single+0x50/0x98
[<ffffff9008f3eafc>] snd_pcm_action+0x50/0x150
[<ffffff9008f49824>] snd_pcm_start+0x20/0x28
[<ffffff9008f4f5e0>] snd_pcm_lib_write1+0x4a4/0x508
[<ffffff9008f4f6d0>] snd_pcm_lib_write+0x8c/0xac
[<ffffff9008f3fd0c>] snd_pcm_ioctl_xferi_compat+0x188/0x35c
[<ffffff9008f49374>] snd_pcm_ioctl_compat+0x32c/0x7bc
[<ffffff90082f2de8>] compat_SyS_ioctl+0x1f4/0x258
[<ffffff90080832f0>] el0_svc_naked+0x24/0x28
Change-Id: Id4ad668bb5b8cdbb79aecc1d00fed200acf0d6da