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devcgroup: always show positive major/minor num

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# echo "b $((0x7fffffff)):$((0x80000000)) rwm" > devices.allow
 # cat devices.list
 b 214748364:-21474836 rwm

though a major/minor number of 0x800000000 is meaningless, we
should not cast it to a negative value.

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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Li Zefan 2008-07-13 12:14:02 -07:00 committed by Linus Torvalds
parent 0302c01b4b
commit 17d213f806
1 changed files with 2 additions and 2 deletions
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4
security/device_cgroup.c
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@ -222,7 +222,7 @@ static void devcgroup_destroy(struct cgroup_subsys *ss,
#define DEVCG_DENY 2
#define DEVCG_LIST 3
#define MAJMINLEN 10
#define MAJMINLEN 13
#define ACCLEN 4
static void set_access(char *acc, short access)
@ -254,7 +254,7 @@ static void set_majmin(char *str, unsigned m)
if (m == ~0)
sprintf(str, "*");
else
snprintf(str, MAJMINLEN, "%d", m);
snprintf(str, MAJMINLEN, "%u", m);
}
static int devcgroup_seq_read(struct cgroup *cgroup, struct cftype *cft,