5.15-stable review patch. If anyone has any objections, please let me know.
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From: Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com
[ Upstream commit 6ab9810cfe6c8f3d8b8750c827d7870abd3751b9 ]
Add a NULL pointer check as clk_hw_get_parent can return NULL.
Signed-off-by: Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com Link: https://lore.kernel.org/r/20220518055314.2486-1-shubhrajyoti.datta@xilinx.co... Acked-by: Michal Simek michal.simek@amd.com Signed-off-by: Stephen Boyd sboyd@kernel.org Stable-dep-of: 1fe15be1fb61 ("drivers: clk: zynqmp: update divider round rate logic") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/zynqmp/divider.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c index 9e535d3e1c0c..47a199346ddf 100644 --- a/drivers/clk/zynqmp/divider.c +++ b/drivers/clk/zynqmp/divider.c @@ -120,10 +120,13 @@ static void zynqmp_get_divider2_val(struct clk_hw *hw, long error = LONG_MAX; unsigned long div1_prate; struct clk_hw *div1_parent_hw; + struct zynqmp_clk_divider *pdivider; struct clk_hw *div2_parent_hw = clk_hw_get_parent(hw); - struct zynqmp_clk_divider *pdivider = - to_zynqmp_clk_divider(div2_parent_hw);
+ if (!div2_parent_hw) + return; + + pdivider = to_zynqmp_clk_divider(div2_parent_hw); if (!pdivider) return;