Merge pull request #20580 from maribu/backport/2024.04/cpu/msp430/tim…

…er-query cpu/msp430/periph_timer: fix timer_query_freqs() [backport 2024.04]
RIOT-OS · Apr 23, 2024 · a8069ca · a8069ca
2 parents bd8c054 + 11fe9b8
commit a8069ca
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/cpu/msp430/periph/timer.c b/cpu/msp430/periph/timer.c
@@ -188,6 +188,10 @@ uint32_t timer_query_freqs(tim_t dev, uword_t index)
     assume((clock_source == TIMER_CLOCK_SOURCE_AUXILIARY_CLOCK) ||
            (clock_source == TIMER_CLOCK_SOURCE_SUBMAIN_CLOCK));
 
+    if (index > TXID_DIV_MAX) {
+        return 0;
+    }
+
     uint32_t clock_freq;
     switch (clock_source) {
     default:

diff --git a/tests/periph/timer/main.c b/tests/periph/timer/main.c
@@ -249,6 +249,8 @@ static void print_supported_frequencies(tim_t dev)
                "    %u: %" PRIu32 "\n",
                (unsigned)(end - 1), timer_query_freqs(dev, end - 1));
     }
+
+    expect(timer_query_freqs(dev, end) == 0);
 }
 
 int main(void)