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| author | Cliff Cai <cliff.cai@analog.com> | 2009-12-09 22:28:39 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-23 11:34:20 -0800 |
| commit | feef1d952ee1e9ac074640d7029dbbe8501725c2 (patch) | |
| tree | fba4643b1789198955e88345c958fc19a6748246 /drivers/usb/gadget | |
| parent | d16f172622a7941c4fca09724ce16df5348af5fb (diff) | |
| download | kernel-crypto-feef1d952ee1e9ac074640d7029dbbe8501725c2.tar.gz kernel-crypto-feef1d952ee1e9ac074640d7029dbbe8501725c2.tar.xz kernel-crypto-feef1d952ee1e9ac074640d7029dbbe8501725c2.zip | |
USB: audio gadget: free alsa devices when unloading
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/audio.c | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/f_audio.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/u_audio.c | 12 | ||||
| -rw-r--r-- | drivers/usb/gadget/u_audio.h | 2 |
4 files changed, 12 insertions, 5 deletions
diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c index 58f22032384..a62af7b5909 100644 --- a/drivers/usb/gadget/audio.c +++ b/drivers/usb/gadget/audio.c @@ -158,6 +158,7 @@ fail: static int __exit audio_unbind(struct usb_composite_dev *cdev) { + gaudio_cleanup(); return 0; } diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c index 1ff420b7d72..df77f6131c7 100644 --- a/drivers/usb/gadget/f_audio.c +++ b/drivers/usb/gadget/f_audio.c @@ -792,7 +792,7 @@ int __init audio_bind_config(struct usb_configuration *c) return status; add_fail: - gaudio_cleanup(&audio->card); + gaudio_cleanup(); setup_fail: kfree(audio); return status; diff --git a/drivers/usb/gadget/u_audio.c b/drivers/usb/gadget/u_audio.c index 8252595d619..35e0930f5bb 100644 --- a/drivers/usb/gadget/u_audio.c +++ b/drivers/usb/gadget/u_audio.c @@ -288,6 +288,7 @@ static int gaudio_close_snd_dev(struct gaudio *gau) return 0; } +static struct gaudio *the_card; /** * gaudio_setup - setup ALSA interface and preparing for USB transfer * @@ -303,6 +304,9 @@ int __init gaudio_setup(struct gaudio *card) if (ret) ERROR(card, "we need at least one control device\n"); + if (!the_card) + the_card = card; + return ret; } @@ -312,9 +316,11 @@ int __init gaudio_setup(struct gaudio *card) * * This is called to free all resources allocated by @gaudio_setup(). */ -void gaudio_cleanup(struct gaudio *card) +void gaudio_cleanup(void) { - if (card) - gaudio_close_snd_dev(card); + if (the_card) { + gaudio_close_snd_dev(the_card); + the_card = NULL; + } } diff --git a/drivers/usb/gadget/u_audio.h b/drivers/usb/gadget/u_audio.h index cc8d159c648..08ffce3298e 100644 --- a/drivers/usb/gadget/u_audio.h +++ b/drivers/usb/gadget/u_audio.h @@ -51,6 +51,6 @@ struct gaudio { }; int gaudio_setup(struct gaudio *card); -void gaudio_cleanup(struct gaudio *card); +void gaudio_cleanup(void); #endif /* __U_AUDIO_H */ |