pcm_direct: fix SEGFAULT when getgrnam_r() returns 0 and pgrp is NULL

Signed-off-by: Krzysztof Halasa <khalasa@piap.pl>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Krzysztof Hałasa 2013-06-14 13:59:38 +02:00 committed by Jaroslav Kysela
parent c91785e002
commit 9d6736c9a2

View file

@ -1650,7 +1650,7 @@ int snd_pcm_direct_parse_open_conf(snd_config_t *root, snd_config_t *conf,
if (buffer == NULL) if (buffer == NULL)
return -ENOMEM; return -ENOMEM;
int st = getgrnam_r(group, &grp, buffer, len, &pgrp); int st = getgrnam_r(group, &grp, buffer, len, &pgrp);
if (st != 0) { if (st != 0 || !pgrp) {
SNDERR("The field ipc_gid must be a valid group (create group %s)", group); SNDERR("The field ipc_gid must be a valid group (create group %s)", group);
free(buffer); free(buffer);
return -EINVAL; return -EINVAL;