From 7759fc9d10d3559f365cb122d81e0c0a185fe0fe Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 25 Jul 2008 01:47:08 -0700 Subject: [PATCH] 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 Acked-by: Serge Hallyn Cc: Serge Hallyn Cc: Paul Menage Cc: Pavel Emelyanov Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/device_cgroup.c | 22 ++++++++-------------- 1 file 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; } -- 2.20.1