ALSA: hda - Don't handle empty patch files



When an empty string is passed to patch option, the driver should
ignore it.  Otherwise it gets an error by trying to load it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 11839aed

sound/pci/hda/hda_intel.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2703,7 +2703,7 @@ static int __devinit azx_probe(struct pci_dev *pci,
		if (err < 0)
		goto out_free;
		#ifdef CONFIG_SND_HDA_PATCH_LOADER
		if (patch[dev]) {
		if (patch[dev] && *patch[dev]) {
		snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
		patch[dev]);
		err = snd_hda_load_patch(chip->bus, patch[dev]);