| Message ID | 1408381015-16042-3-git-send-email-nm@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c index 4a65b41..af29359 100644 --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -139,9 +139,13 @@ static long atl_clk_round_rate(struct clk_hw *hw, unsigned long rate, static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { - struct dra7_atl_desc *cdesc = to_atl_desc(hw); + struct dra7_atl_desc *cdesc; u32 divider; + if (!hw || !rate) + return -EINVAL; + + cdesc = to_atl_desc(hw); divider = ((parent_rate + rate / 2) / rate) - 1; if (divider > DRA7_ATL_DIVIDER_MASK) divider = DRA7_ATL_DIVIDER_MASK;
Check for valid parameters in check rate. Else, we end up getting errors. This occurs as part of the inital clock tree update of child clock nodes where new_rate could be 0 for non functional clocks. Fixes: 9ac33b0ce81fa48 (" CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)") Signed-off-by: Nishanth Menon <nm@ti.com> --- drivers/clk/ti/clk-dra7-atl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)