diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 16bc8d75e36e..b21d0dec9283 100644
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -924,10 +924,10 @@ calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2, u32 *retn, u32 *re
 			if (m > pll->max_m)
 				m = pll->max_m - 1;
 			for (testm = m - 1; testm <= m; testm++) {
-				f_out = calc_vclock3(index, m, n, p);
+				f_out = calc_vclock3(index, testm, n, p);
 				if (splitm(index, testm, &m1, &m2)) {
-					WRN_MSG("cannot split m = %d\n", m);
-					n++;
+					WRN_MSG("cannot split m = %d\n",
+						testm);
 					continue;
 				}
 				if (clock > f_out)