ALSA: hda - Limit the number of GPIOs show in proc

Limit the number of GPIOs shown in proc.  Otherwise it gets too long
unnecessarily, and hard to analyze.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index 743d77922bce..c39af986bff1 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -483,6 +483,8 @@ static void print_gpio(struct snd_info_buffer *buffer,
                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
         max = gpio & AC_GPIO_IO_COUNT;
+        if (!max || max > 8)
+                return;
         enable = snd_hda_codec_read(codec, nid, 0,
                                     AC_VERB_GET_GPIO_MASK, 0);
         direction = snd_hda_codec_read(codec, nid, 0,