diff options
| -rw-r--r-- | monitor.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/monitor.c b/monitor.c index bf60984d8f..12a6fe25ad 100644 --- a/monitor.c +++ b/monitor.c @@ -89,8 +89,8 @@ * TODO lift the restriction * 'i' 32 bit integer * 'l' target long (32 or 64 bit) - * 'M' just like 'l', except in user mode the value is - * multiplied by 2^20 (think Mebibyte) + * 'M' Non-negative target long (32 or 64 bit), in user mode the + * value is multiplied by 2^20 (think Mebibyte) * 'o' octets (aka bytes) * user mode accepts an optional T, t, G, g, M, m, K, k * suffix, which multiplies the value by 2^40 for @@ -3622,6 +3622,10 @@ static const mon_cmd_t *monitor_parse_command(Monitor *mon, monitor_printf(mon, "integer is for 32-bit values\n"); goto fail; } else if (c == 'M') { + if (val < 0) { + monitor_printf(mon, "enter a positive value\n"); + goto fail; + } val <<= 20; } qdict_put(qdict, key, qint_from_int(val)); |