ALSA: usx2y: Avoid self-killing
authorTakashi Iwai <tiwai@suse.de>
Mon, 17 May 2021 13:15:39 +0000 (15:15 +0200)
committerTakashi Iwai <tiwai@suse.de>
Mon, 17 May 2021 14:04:22 +0000 (16:04 +0200)
The initialization os usx2y driver is multi-staged, and the PCM and
other device creations are done after the DSP is loaded and
initialized.  Upon the initialization, when an error happens, the
driver tries to call snd_card_free().  But this is dangerous, and in
general, the driver cannot kill itself during its operation.
Hence better to drop the snd_card_free() call from there.

Link: https://lore.kernel.org/r/20210517131545.27252-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/usx2y/usX2Yhwdep.c

index 0ed50be..ec7e3be 100644 (file)
@@ -220,7 +220,6 @@ static int snd_usx2y_hwdep_dsp_load(struct snd_hwdep *hw,
                err = usx2y_create_alsa_devices(hw->card);
                if (err) {
                        snd_printk(KERN_ERR "usx2y_create_alsa_devices error %i\n", err);
-                       snd_card_free(hw->card);
                        return err;
                }
                priv->chip_status |= USX2Y_STAT_CHIP_INIT;