Messages in this thread Patch in this message | | | From | xkernel.wang@foxmail ... | Subject | [PATCH] clk: pxa: add a check for the return value of kzalloc() | Date | Fri, 25 Mar 2022 18:27:20 +0800 |
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From: Xiaoke Wang <xkernel.wang@foxmail.com>
kzalloc() is a memory allocation function which can return NULL when some internal memory errors happen. So it is better to check it to prevent potential wrong memory access.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> --- drivers/clk/pxa/clk-pxa.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c index cfc79f9..d0df104 100644 --- a/drivers/clk/pxa/clk-pxa.c +++ b/drivers/clk/pxa/clk-pxa.c @@ -102,6 +102,8 @@ int __init clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks) for (i = 0; i < nb_clks; i++) { pxa_clk = kzalloc(sizeof(*pxa_clk), GFP_KERNEL); + if (!pxa_clk) + continue; pxa_clk->is_in_low_power = clks[i].is_in_low_power; pxa_clk->lp = clks[i].lp; pxa_clk->hp = clks[i].hp; --
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