X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=sound%2Fcore%2Fcontrol.c;h=96c62e58d9501c36dfdd1197db2b1af2a76d3151;hp=1ba5d339acd3bf73226b5307838e62f1776c04ff;hb=c793373eea1dcd0102a4f09edea14d404da9629b;hpb=2652a5cb46b8e55c2e62aef48256c31af0127420

diff --git a/sound/core/control.c b/sound/core/control.c
index 1ba5d339acd3..96c62e58d950 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1321,6 +1321,8 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
 		return -EFAULT;
 	if (tlv.length < sizeof(unsigned int) * 2)
 		return -EINVAL;
+	if (!tlv.numid)
+		return -EINVAL;
 	down_read(&card->controls_rwsem);
 	kctl = snd_ctl_find_numid(card, tlv.numid);
 	if (kctl == NULL) {