devcgroup: always show positive major/minor num

 # 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 <>
Acked-by: Serge Hallyn <>
Cc: Serge Hallyn <>
Cc: Paul Menage <>
Cc: Pavel Emelyanov <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
1 file changed