From d0a5fdf4cc83dabcdea668f971b8a2e916437711 Mon Sep 17 00:00:00 2001 From: Vincent Chen Date: Tue, 23 Jun 2020 09:24:17 +0800 Subject: clk: sifive: allocate sufficient memory for struct __prci_data The (struct __prci_data).hw_clks.hws is an array with dynamic elements. Using struct_size(pd, hw_clks.hws, ARRAY_SIZE(__prci_init_clocks)) instead of sizeof(*pd) to get the correct memory size of struct __prci_data for sifive/fu540-prci. After applying this modifications, the kernel runs smoothly with CONFIG_SLAB_FREELIST_RANDOM enabled on the HiFive unleashed board. Fixes: 30b8e27e3b58 ("clk: sifive: add a driver for the SiFive FU540 PRCI IP block") Signed-off-by: Vincent Chen Signed-off-by: Palmer Dabbelt --- drivers/clk/sifive/fu540-prci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/sifive/fu540-prci.c b/drivers/clk/sifive/fu540-prci.c index 6282ee2f361c..a8901f90a61a 100644 --- a/drivers/clk/sifive/fu540-prci.c +++ b/drivers/clk/sifive/fu540-prci.c @@ -586,7 +586,10 @@ static int sifive_fu540_prci_probe(struct platform_device *pdev) struct __prci_data *pd; int r; - pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); + pd = devm_kzalloc(dev, + struct_size(pd, hw_clks.hws, + ARRAY_SIZE(__prci_init_clocks)), + GFP_KERNEL); if (!pd) return -ENOMEM; -- cgit v1.2.3-59-g8ed1b