diff options
| author | Li Zefan <lizf@cn.fujitsu.com> | 2008-07-25 10:47:08 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 19:53:37 +0200 |
| commit | 7759fc9d10d3559f365cb122d81e0c0a185fe0fe (patch) | |
| tree | 2674cb439f9d27b5c0ef9ef078f6c8f7dac3b758 /security/device_cgroup.c | |
| parent | devcgroup: relax white-list protection down to RCU (diff) | |
| download | linux-7759fc9d10d3559f365cb122d81e0c0a185fe0fe.tar.xz linux-7759fc9d10d3559f365cb122d81e0c0a185fe0fe.zip | |
devcgroup: code cleanup
- clean up set_majmin()
- use simple_strtoul() to parse major/minor
[akpm@linux-foundation.org: fix simple_strtoul() usage]
[kosaki.motohiro@jp.fujitsu.com: fix warnings]
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -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 9da3532726ff..7bd296cca041 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; } |