diff options
Diffstat (limited to 'drivers/video/aty/aty128fb.c')
| -rw-r--r-- | drivers/video/aty/aty128fb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 276a21530b95..3feddf89d100 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1333,6 +1333,8 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, if (vclk * 12 < c.ppll_min) vclk = c.ppll_min/12; + pll->post_divider = -1; + /* now, find an acceptable divider */ for (i = 0; i < sizeof(post_dividers); i++) { output_freq = post_dividers[i] * vclk; @@ -1342,6 +1344,9 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, } } + if (pll->post_divider < 0) + return -EINVAL; + /* calculate feedback divider */ n = c.ref_divider * output_freq; d = c.ref_clk; |