From 4ff9a2f211eade1f706a522285646ec5cfdd217e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 3 Dec 2018 17:51:43 +0300 Subject: [PATCH] clk: mmp: Off by one in mmp_clk_add() [ Upstream commit 2e85c57493e391b93445c1e0d530b36b95becc64 ] The > comparison should be >= or we write one element beyond the end of the unit->clk_table[] array. (The unit->clk_table[] array is allocated in the mmp_clk_init() function and it has unit->nr_clks elements). Fixes: 4661fda10f8b ("clk: mmp: add basic support functions for DT support") Signed-off-by: Dan Carpenter Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/mmp/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/mmp/clk.c b/drivers/clk/mmp/clk.c index 61893fe73251..18b6c9b55b95 100644 --- a/drivers/clk/mmp/clk.c +++ b/drivers/clk/mmp/clk.c @@ -182,7 +182,7 @@ void mmp_clk_add(struct mmp_clk_unit *unit, unsigned int id, pr_err("CLK %d has invalid pointer %p\n", id, clk); return; } - if (id > unit->nr_clks) { + if (id >= unit->nr_clks) { pr_err("CLK %d is invalid\n", id); return; }