ALSA: hda/tas2781: Remove unnecessary NULL check before release_firmware()

JIRA: https://issues.redhat.com/browse/RHEL-80657

commit 120305a
Author: Chen Ni <nichen@iscas.ac.cn>
Date: Mon Apr 7 14:19:39 2025 +0800

    ALSA: hda/tas2781: Remove unnecessary NULL check before release_firmware()

    release_firmware() checks for NULL pointers internally.
    Remove unneeded NULL check for fmw here.

    Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
    Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Link: https://patch.msgid.link/20250407061939.2771803-1-nichen@iscas.ac.cn
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

Signed-off-by: Jaroslav Kysela <jkysela@redhat.com>

Author: jkysela-rh

sound/pci/hda/tas2781_hda_spi.c

@@ -1003,8 +1003,7 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 	 */
 
 out:
-	if (fmw)
-		release_firmware(fmw);
+	release_firmware(fmw);
 	pm_runtime_mark_last_busy(tas_hda->priv->dev);
 	pm_runtime_put_autosuspend(tas_hda->priv->dev);
 }