Staging: fbtft: Fix bug in fbtft-core

[deliverable/linux.git] / drivers / staging / fbtft / fbtft-core.c

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 0c1a77cafe14191a397f6a4be43201da2f92dd75..4c281df168166bdf98b3e5afa8fd85241e0db08f 100644 (file)
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -391,11 +391,11 @@ static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
 
        if (unlikely(timeit)) {
                ts_end = ktime_get();
-               if (ktime_to_ns(par->update_time))
+               if (!ktime_to_ns(par->update_time))
                        par->update_time = ts_start;
 
-               par->update_time = ts_start;
                fps = ktime_us_delta(ts_start, par->update_time);
+               par->update_time = ts_start;
                fps = fps ? 1000000 / fps : 0;
 
                throughput = ktime_us_delta(ts_end, ts_start);