Fix: syscall listing: handle "enable all syscall"

[lttng-modules.git] / lttng-syscalls.c

diff --git a/lttng-syscalls.c b/lttng-syscalls.c
index 5cac721200bb8aa5cab44ffcfa281e380d7ccfe1..846946ad374ca00d7af1b4f3c36fa0d60155938d 100644 (file)
--- a/lttng-syscalls.c
+++ b/lttng-syscalls.c
@@ -1230,12 +1230,12 @@ long lttng_channel_syscall_mask(struct lttng_channel *channel,
 
        for (bit = 0; bit < ARRAY_SIZE(sc_table); bit++) {
                bt_bitfield_write_be(tmp_mask, char, bit, 1,
-                       test_bit(bit, filter->sc));
+                       filter ? test_bit(bit, filter->sc) : 1);
        }
        for (; bit < sc_tables_len; bit++) {
                bt_bitfield_write_be(tmp_mask, char, bit, 1,
-                       test_bit(bit - ARRAY_SIZE(sc_table),
-                               filter->sc_compat));
+                       filter ? test_bit(bit - ARRAY_SIZE(sc_table),
+                               filter->sc_compat) : 1);
        }
        if (copy_to_user(usyscall_mask->mask, tmp_mask, bitmask_len))
                ret = -EFAULT;