/* * Copyright (C) 2009 Red Hat Inc, Steven Rostedt * Copyright (C) 2009 Johannes Berg * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include #include #include #include "event-parse.h" static int timer_expire_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) { trace_seq_printf(s, "hrtimer="); if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1) pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1); trace_seq_printf(s, " now="); pevent_print_num_field(s, "%llu", event, "now", record, 1); pevent_print_func_field(s, " function=%s", event, "function", record, 0); return 0; } static int timer_start_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) { trace_seq_printf(s, "hrtimer="); if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1) pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1); pevent_print_func_field(s, " function=%s", event, "function", record, 0); trace_seq_printf(s, " expires="); pevent_print_num_field(s, "%llu", event, "expires", record, 1); trace_seq_printf(s, " softexpires="); pevent_print_num_field(s, "%llu", event, "softexpires", record, 1); return 0; } int PEVENT_PLUGIN_LOADER(struct pevent *pevent) { pevent_register_event_handler(pevent, -1, "timer", "hrtimer_expire_entry", timer_expire_handler, NULL); pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start", timer_start_handler, NULL); return 0; } void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) { pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_expire_entry", timer_expire_handler, NULL); pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start", timer_start_handler, NULL); } href='/cgit.cgi/linux/net-next.git/commit/sound?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>sound/soc/fsl/p1022_ds.c
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /sound/soc/fsl/p1022_ds.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'sound/soc/fsl/p1022_ds.c')