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>
This commit is contained in:
Takashi Iwai 2011-02-10 17:39:20 +01:00
parent 11839aed21
commit 41a63f18d3
1 changed files with 1 additions and 1 deletions

View File

@ -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]);