diff options
| author |   Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> | 2022-05-18 11:23:14 +0530 |
|---|---|---|
| committer |   Stephen Boyd <sboyd@kernel.org> | 2022-08-22 17:01:05 -0700 |
| commit | 6ab9810cfe6c8f3d8b8750c827d7870abd3751b9 (patch) | |
| tree | 7648467be1fec8e5fe1ca657a30755982e36d678 /drivers/clk/zynqmp | |
| parent | clk: zynqmp: Replaced strncpy() with strscpy() (diff) | |
| download | wireguard-linux-6ab9810cfe6c8f3d8b8750c827d7870abd3751b9.tar.xz wireguard-linux-6ab9810cfe6c8f3d8b8750c827d7870abd3751b9.zip | |
clk: zynqmp: Add a check for NULL pointer
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.com
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/zynqmp')
| -rw-r--r-- | drivers/clk/zynqmp/divider.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c index 05788d8325d4..33a3b2a22659 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; |