[PATCH] LOG: only range check "t" when filtering else tags are not applied.

[Angus Salkeld]

Signed-off-by: Angus Salkeld 
---
 lib/log.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/log.c b/lib/log.c
index 13996b4..885751e 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -547,10 +547,16 @@ qb_log_filter_ctl2(int32_t t, enum qb_log_filter_conf c,
    if (!logger_inited) {
    	return -EINVAL;
    }
-	if (t < 0 || t >= QB_LOG_TARGET_MAX ||
-	    conf[t].state == QB_LOG_STATE_UNUSED) {
-		return -EBADF;
+
+	if (t == QB_LOG_FILTER_ADD ||
+	    t == QB_LOG_FILTER_CLEAR_ALL ||
+	    t == QB_LOG_FILTER_REMOVE) {
+		if (t < 0 || t >= QB_LOG_TARGET_MAX ||
+		    conf[t].state == QB_LOG_STATE_UNUSED) {
+			return -EBADF;
+		}
    }
+
    if (text == NULL ||
        low_priority < high_priority ||
        type > QB_LOG_FILTER_FORMAT ||