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Commit bc477961 authored by Vivek Aknurwar's avatar Vivek Aknurwar
Browse files

clk: qcom: clk-debug: Fix possible NULL dereference in _mux_get_parent 



Fix possible NULL dereference in retrieving clk parent name.

Change-Id: Ic4dbc6632f00365ea127042c0f3bd9b66a243ec6
Signed-off-by: default avatarVivek Aknurwar <viveka@codeaurora.org>
parent 2c30b064

drivers/clk/qcom/clk-debug.c

+5 −1
Original line number Diff line number Diff line
@@ -146,13 +146,17 @@ static u8 clk_debug_mux_get_parent(struct clk_hw *hw) 
{

	int i, num_parents = clk_hw_get_num_parents(hw);

	struct clk_hw *hw_clk = clk_hw_get_parent(hw);

	struct clk_hw *clk_parent;

	const char *parent;



	if (!hw_clk)

		return 0;



	for (i = 0; i < num_parents; i++) {

		parent = clk_hw_get_name(clk_hw_get_parent_by_index(hw, i));

		clk_parent = clk_hw_get_parent_by_index(hw, i);

		if (!clk_parent)

			return 0;

		parent = clk_hw_get_name(clk_parent);

		if (!strcmp(parent, clk_hw_get_name(hw_clk))) {

			pr_debug("%s: clock parent - %s, index %d\n", __func__,

				parent, i);