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ALSA: bebob: fix memory leak for M-Audio FW1814 and ProjectMix I/O at error path 

After allocating model-dependent data for M-Audio FW1814 and ProjectMix
I/O, ALSA bebob driver has memory leak at error path.

This commit releases the allocated data at the error path.

Fixes: 04a2c73c97eb('ALSA: bebob: delayed registration of sound card')
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2018-09-17 17:25:24 +09:00 committed by Takashi Iwai
parent 37a3a98ef6
commit b1fbebd416
2 changed files with 2 additions and 4 deletions
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2
sound/firewire/bebob/bebob.c
View File

@ -263,6 +263,8 @@ do_registration(struct work_struct *work)
error:
mutex_unlock(&devices_mutex);
snd_bebob_stream_destroy_duplex(bebob);
kfree(bebob->maudio_special_quirk);
bebob->maudio_special_quirk = NULL;
snd_card_free(bebob->card);
dev_info(&bebob->unit->device,
"Sound card registration failed: %d\n", err);

4
sound/firewire/bebob/bebob_maudio.c
View File

@ -294,10 +294,6 @@ snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814)
bebob->midi_output_ports = 2;
}
end:
if (err < 0) {
kfree(params);
bebob->maudio_special_quirk = NULL;
}
mutex_unlock(&bebob->mutex);
return err;
}