From 24973a17310bd933969d79cf4080049df85aff2c Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 10 Jan 2012 12:41:22 +0100 Subject: ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs commit 3a90274de3548ebb2aabfbf488cea8e275a73dc6 upstream. When an invalid NID is given, get_wcaps() returns zero as the error, but get_wcaps_type() takes it as the normal value and returns a bogus AC_WID_AUD_OUT value. This confuses the parser. With this patch, get_wcaps_type() returns -1 when value 0 is given, i.e. an invalid NID is passed to get_wcaps(). Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=740118 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/hda_proc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sound/pci/hda/hda_proc.c') diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c index bfe74c2..6fe944a 100644 --- a/sound/pci/hda/hda_proc.c +++ b/sound/pci/hda/hda_proc.c @@ -54,6 +54,8 @@ static const char *get_wid_type_name(unsigned int wid_value) [AC_WID_BEEP] = "Beep Generator Widget", [AC_WID_VENDOR] = "Vendor Defined Widget", }; + if (wid_value == -1) + return "UNKNOWN Widget"; wid_value &= 0xf; if (names[wid_value]) return names[wid_value]; -- cgit v1.1