ALSA: hda - Missing NULL check in hda_beep.c

Added a NULL check of input_allocate_device() in hda_beep.c.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c
index b1796ae1e8fb..3ecd7e797dee 100644
--- a/sound/pci/hda/hda_beep.c
+++ b/sound/pci/hda/hda_beep.c
@@ -88,6 +88,10 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
         snprintf(beep->phys, sizeof(beep->phys),
                 "card%d/codec#%d/beep0", codec->bus->card->number, codec->addr);
         input_dev = input_allocate_device();
+        if (!input_dev) {
+                kfree(beep);
+                return -ENOMEM;
+        }
 
         /* setup digital beep device */
         input_dev->name = "HDA Digital PCBeep";