From 213691c7e873206742b39751895d15b41a02b3d1 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 10 Aug 2017 00:07:00 +0000 Subject: [PATCH] ASoC: rsnd: call free_irq() both DMA/PIO mode commit 701172dca15b ("ASoC: rsnd: don't use devm_request_irq() for SSI") exchanged devm_request_irq() to request_irq() for SSI, because SSI will fallback into PIO mode if DMA doesn't work. But, because of it, PIO mode needed to call free_irq() when removing, not only DMA mode. This patch call free_irq() both PIO/DMA. Otherwise, rsnd IRQ handler will be increased if user tried many unbind/bind. Fixes: 701172dca15b ("ASoC: rsnd: don't use devm_request_irq() for SSI") Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 0309de58bf18..281ed0da6ba1 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -792,6 +792,23 @@ static int rsnd_ssi_common_probe(struct rsnd_mod *mod, return ret; } +static int rsnd_ssi_common_remove(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); + struct rsnd_mod *pure_ssi_mod = rsnd_io_to_mod_ssi(io); + + /* Do nothing if non SSI (= SSI parent, multi SSI) mod */ + if (pure_ssi_mod != mod) + return 0; + + /* PIO will request IRQ again */ + free_irq(ssi->irq, mod); + + return 0; +} + static int rsnd_ssi_pointer(struct rsnd_mod *mod, struct rsnd_dai_stream *io, snd_pcm_uframes_t *pointer) @@ -807,6 +824,7 @@ static int rsnd_ssi_pointer(struct rsnd_mod *mod, static struct rsnd_mod_ops rsnd_ssi_pio_ops = { .name = SSI_NAME, .probe = rsnd_ssi_common_probe, + .remove = rsnd_ssi_common_remove, .init = rsnd_ssi_init, .quit = rsnd_ssi_quit, .start = rsnd_ssi_start, @@ -841,23 +859,6 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod, return ret; } -static int rsnd_ssi_dma_remove(struct rsnd_mod *mod, - struct rsnd_dai_stream *io, - struct rsnd_priv *priv) -{ - struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); - struct rsnd_mod *pure_ssi_mod = rsnd_io_to_mod_ssi(io); - - /* Do nothing if non SSI (= SSI parent, multi SSI) mod */ - if (pure_ssi_mod != mod) - return 0; - - /* PIO will request IRQ again */ - free_irq(ssi->irq, mod); - - return 0; -} - static int rsnd_ssi_fallback(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) @@ -899,7 +900,7 @@ static struct rsnd_mod_ops rsnd_ssi_dma_ops = { .name = SSI_NAME, .dma_req = rsnd_ssi_dma_req, .probe = rsnd_ssi_dma_probe, - .remove = rsnd_ssi_dma_remove, + .remove = rsnd_ssi_common_remove, .init = rsnd_ssi_init, .quit = rsnd_ssi_quit, .start = rsnd_ssi_start, -- 2.20.1