From: Dmitry Osipenko <digetx@gmail.com>
Date: Tue, 5 Jun 2018 12:12:32 +0000 (+0300)
Subject: clk: tegra: emc: Avoid out-of-bounds bug
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=405fcacbd866cfe75733b94bacdef5bcb4aa6c6c;p=linux.git

clk: tegra: emc: Avoid out-of-bounds bug

Apparently there was an attempt to avoid out-of-bounds accesses when there
is only one memory timing available, but there is a typo in the code that
neglects that attempt.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---

diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c
index 5234acd30e898..0621a3a82ea6c 100644
--- a/drivers/clk/tegra/clk-emc.c
+++ b/drivers/clk/tegra/clk-emc.c
@@ -132,7 +132,7 @@ static int emc_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
 		timing = tegra->timings + i;
 
 		if (timing->rate > req->max_rate) {
-			i = min(i, 1);
+			i = max(i, 1);
 			req->rate = tegra->timings[i - 1].rate;
 			return 0;
 		}