diff options
| -rw-r--r-- | security/device_cgroup.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 9da3532..7bd296c 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -202,7 +202,7 @@ static struct cgroup_subsys_state *devcgroup_create(struct cgroup_subsys *ss, } wh->minor = wh->major = ~0; wh->type = DEV_ALL; - wh->access = ACC_MKNOD | ACC_READ | ACC_WRITE; + wh->access = ACC_MASK; list_add(&wh->list, &dev_cgroup->whitelist); } else { parent_dev_cgroup = cgroup_to_devcgroup(parent_cgroup); @@ -264,11 +264,10 @@ static char type_to_char(short type) static void set_majmin(char *str, unsigned m) { - memset(str, 0, MAJMINLEN); if (m == ~0) - sprintf(str, "*"); + strcpy(str, "*"); else - snprintf(str, MAJMINLEN, "%u", m); + sprintf(str, "%u", m); } static int devcgroup_seq_read(struct cgroup *cgroup, struct cftype *cft, @@ -360,6 +359,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, { struct dev_cgroup *cur_devcgroup; const char *b; + char *endp; int retval = 0, count; struct dev_whitelist_item wh; @@ -395,11 +395,8 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, wh.major = ~0; b++; } else if (isdigit(*b)) { - wh.major = 0; - while (isdigit(*b)) { - wh.major = wh.major*10+(*b-'0'); - b++; - } + wh.major = simple_strtoul(b, &endp, 10); + b = endp; } else { return -EINVAL; } @@ -412,11 +409,8 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, wh.minor = ~0; b++; } else if (isdigit(*b)) { - wh.minor = 0; - while (isdigit(*b)) { - wh.minor = wh.minor*10+(*b-'0'); - b++; - } + wh.minor = simple_strtoul(b, &endp, 10); + b = endp; } else { return -EINVAL; } |
