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authorKees Cook <keescook@chromium.org>2017-10-24 08:34:58 -0700
committerTakashi Iwai <tiwai@suse.de>2017-10-25 09:51:21 +0200
commit4f928246f0e8f9bda88f41131ec447a1b8193dbc (patch)
tree1d6cf9500b82aeceb704427768b936fdabfbd771
parent57e69e2f06e8fe4949c54e438c9faae0731e92f8 (diff)
ALSA: sb: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. [Re-use the existing chip->midi_substream_output instead of assigning a new field to struct snd_sb -- tiwai] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/isa/sb/emu8000_pcm.c6
-rw-r--r--sound/isa/sb/sb8_midi.c11
2 files changed, 8 insertions, 9 deletions
diff --git a/sound/isa/sb/emu8000_pcm.c b/sound/isa/sb/emu8000_pcm.c
index 8f34551abd8d..bc5af71d3bdb 100644
--- a/sound/isa/sb/emu8000_pcm.c
+++ b/sound/isa/sb/emu8000_pcm.c
@@ -193,9 +193,9 @@ static inline int emu8k_get_curpos(struct snd_emu8k_pcm *rec, int ch)
* timer interrupt handler
* check the current position and update the period if necessary.
*/
-static void emu8k_pcm_timer_func(unsigned long data)
+static void emu8k_pcm_timer_func(struct timer_list *t)
{
- struct snd_emu8k_pcm *rec = (struct snd_emu8k_pcm *)data;
+ struct snd_emu8k_pcm *rec = from_timer(rec, t, timer);
int ptr, delta;
spin_lock(&rec->timer_lock);
@@ -241,7 +241,7 @@ static int emu8k_pcm_open(struct snd_pcm_substream *subs)
runtime->private_data = rec;
spin_lock_init(&rec->timer_lock);
- setup_timer(&rec->timer, emu8k_pcm_timer_func, (unsigned long)rec);
+ timer_setup(&rec->timer, emu8k_pcm_timer_func, 0);
runtime->hw = emu8k_pcm_hw;
runtime->hw.buffer_bytes_max = emu->mem_size - LOOP_BLANK_SIZE * 3;
diff --git a/sound/isa/sb/sb8_midi.c b/sound/isa/sb/sb8_midi.c
index bd672abb4854..05ba2c6b1a8c 100644
--- a/sound/isa/sb/sb8_midi.c
+++ b/sound/isa/sb/sb8_midi.c
@@ -209,10 +209,10 @@ static void snd_sb8dsp_midi_output_write(struct snd_rawmidi_substream *substream
}
}
-static void snd_sb8dsp_midi_output_timer(unsigned long data)
+static void snd_sb8dsp_midi_output_timer(struct timer_list *t)
{
- struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *) data;
- struct snd_sb * chip = substream->rmidi->private_data;
+ struct snd_sb *chip = from_timer(chip, t, midi_timer);
+ struct snd_rawmidi_substream *substream = chip->midi_substream_output;
unsigned long flags;
spin_lock_irqsave(&chip->open_lock, flags);
@@ -230,9 +230,8 @@ static void snd_sb8dsp_midi_output_trigger(struct snd_rawmidi_substream *substre
spin_lock_irqsave(&chip->open_lock, flags);
if (up) {
if (!(chip->open & SB_OPEN_MIDI_OUTPUT_TRIGGER)) {
- setup_timer(&chip->midi_timer,
- snd_sb8dsp_midi_output_timer,
- (unsigned long) substream);
+ timer_setup(&chip->midi_timer,
+ snd_sb8dsp_midi_output_timer, 0);
mod_timer(&chip->midi_timer, 1 + jiffies);
chip->open |= SB_OPEN_MIDI_OUTPUT_TRIGGER;
}