sam3n port: fix integer comparison in clock initialization

[bertos.git] / bertos / cpu / cortex-m3 / drv / clock_sam3.c

diff --git a/bertos/cpu/cortex-m3/drv/clock_sam3.c b/bertos/cpu/cortex-m3/drv/clock_sam3.c
index ae70d52999ae20b35574f792aac35c0e7a7fd2ba..fbc79062216a4ad8207e23423412e65a1aa91860 100644 (file)
--- a/bertos/cpu/cortex-m3/drv/clock_sam3.c
+++ b/bertos/cpu/cortex-m3/drv/clock_sam3.c
@@ -65,8 +65,8 @@ INLINE uint32_t evaluate_pll(void)
                {
                        // RC oscillator set to 12 MHz
                        freq = 12000000 / div * (1 + mul);
-                       if (ABS(CPU_FREQ - freq) < best_delta) {
-                               best_delta = ABS(CPU_FREQ - freq);
+                       if (ABS((int)CPU_FREQ - freq) < best_delta) {
+                               best_delta = ABS((int)CPU_FREQ - freq);
                                best_mul = mul;
                                best_div = div;
                        }