If LOG_DEBUG is defined and a NULL clk is passed to clk_enable or clk_disable then an attempt is made to dereference NULL in the debug statement. Guard against this.
Signed-off-by: Andrew Goodbody <[email protected]> --- drivers/clk/clk-uclass.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index 3dbe1ce9441ca513d41be90520ff175c96b4253a..1f55dbe385b76d0d6cfbf19bc9f4f1abe619baf2 100644 --- a/drivers/clk/clk-uclass.c +++ b/drivers/clk/clk-uclass.c @@ -660,7 +660,7 @@ int clk_enable(struct clk *clk) struct clk *clkp = NULL; int ret; - debug("%s(clk=%p name=%s)\n", __func__, clk, clk->dev->name); + debug("%s(clk=%p name=%s)\n", __func__, clk, clk ? clk->dev->name : "NULL"); if (!clk_valid(clk)) return 0; ops = clk_dev_ops(clk->dev); @@ -721,7 +721,7 @@ int clk_disable(struct clk *clk) struct clk *clkp = NULL; int ret; - debug("%s(clk=%p name=%s)\n", __func__, clk, clk->dev->name); + debug("%s(clk=%p name=%s)\n", __func__, clk, clk ? clk->dev->name : "NULL"); if (!clk_valid(clk)) return 0; ops = clk_dev_ops(clk->dev); -- 2.47.3
