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clk: check hw and hw->dev before dereference it

Check hw and hw->dev before dereference it.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Claudiu Beznea 3 年之前
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共有 1 個文件被更改,包括 3 次插入0 次删除
  1. 3 0
      drivers/clk/clk.c

+ 3 - 0
drivers/clk/clk.c

@@ -57,6 +57,9 @@ ulong clk_generic_get_rate(struct clk *clk)
 
 const char *clk_hw_get_name(const struct clk *hw)
 {
+	assert(hw);
+	assert(hw->dev);
+
 	return hw->dev->name;
 }