From 3c740d90490abe64c86c667934ba5d990817b873 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Wed, 20 Nov 2019 13:20:39 +0100 Subject: [PATCH 06/26] alsactl: sysfs - add /sys/kernel/uevent_seqnum check to init Signed-off-by: Jaroslav Kysela --- alsactl/init_sysfs.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/alsactl/init_sysfs.c b/alsactl/init_sysfs.c index 5c789b61b0e5..57ef615a2c76 100644 --- a/alsactl/init_sysfs.c +++ b/alsactl/init_sysfs.c @@ -34,6 +34,8 @@ static int sysfs_init(void) const char *env; char sysfs_test[PATH_SIZE]; + INIT_LIST_HEAD(&attr_list); + env = getenv("SYSFS_PATH"); if (env) { strlcpy(sysfs_path, env, sizeof(sysfs_path)); @@ -43,13 +45,16 @@ static int sysfs_init(void) dbg("sysfs_path='%s'", sysfs_path); strlcpy(sysfs_test, sysfs_path, sizeof(sysfs_test)); - strlcat(sysfs_test, "/kernel/uevent_helper", sizeof(sysfs_test)); + strlcat(sysfs_test, "/kernel/uevent_seqnum", sizeof(sysfs_test)); if (access(sysfs_test, F_OK)) { - error("sysfs path '%s' is invalid\n", sysfs_path); - return -errno; + strlcpy(sysfs_test, sysfs_path, sizeof(sysfs_test)); + strlcat(sysfs_test, "/kernel/uevent_helper", sizeof(sysfs_test)); + if (access(sysfs_test, F_OK)) { + error("sysfs path '%s' is invalid", sysfs_path); + return -errno; + } } - INIT_LIST_HEAD(&attr_list); return 0; } -- 2.16.4