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path: root/sound/core/compress_offload.c
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2012-11-17ALSA: Add a reference counter to card instanceTakashi Iwai
commit a0830dbd4e42b38aefdf3fb61ba5019a1a99ea85 upstream. For more strict protection for wild disconnections, a refcount is introduced to the card instance, and let it up/down when an object is referred via snd_lookup_*() in the open ops. The free-after-last-close check is also changed to check this refcount instead of the empty list, too. Reported-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-01-24ALSA: Fix memory leak on error in snd_compr_set_params()Jesper Juhl
If copy_from_user() does not return 0 we'll leak the memory we allocated for 'params' when that variable goes out of scope. Also a small CodingStyle cleanup: Use braces on both branches of if/else when one branch needs it. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-23ALSA: core: add support for compress_offloadVinod Koul
This patch adds core.c, the file which implements the ioctls and registers the devices Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>