On Feb 07 2019, Atish Patra <atish.pa...@wdc.com> wrote: > + while ((node = of_find_node_by_type(node, "cpu"))) { > + if (!node) {
That can never be true. > + pr_warn("Unable to find \"cpu\" devicetree entry"); > + return; > + } > + > + hartid = riscv_of_processor_hartid(node); > + if (hartid < 0) > + continue; > > - if (of_property_read_string(node, "riscv,isa", &isa)) { > - pr_warning("Unable to find \"riscv,isa\" devicetree entry"); > + if (of_property_read_string(node, "riscv,isa", &isa)) { > + pr_warn("Unable to find \"riscv,isa\" devicetree > entry"); > + of_node_put(node); > + return; > + } > of_node_put(node); [ 0.000000] OF: ERROR: Bad of_node_put() on /cpus/cpu@1 [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.0.0-rc6-00020-g5903f30f1310 #12 [ 0.000000] Call Trace: [ 0.000000] [<ffffffe001076812>] walk_stackframe+0x0/0xa4 [ 0.000000] [<ffffffe001076a12>] show_stack+0x2a/0x34 [ 0.000000] [<ffffffe0015cf9ea>] dump_stack+0x62/0x7c [ 0.000000] [<ffffffe00149fed4>] of_node_release+0xbe/0xc0 [ 0.000000] [<ffffffe0015d465a>] kobject_put+0xa6/0x1e8 [ 0.000000] [<ffffffe00149f44e>] of_node_put+0x16/0x20 [ 0.000000] [<ffffffe00149b45e>] of_find_node_by_type+0x66/0xa4 [ 0.000000] [<ffffffe0010755ca>] riscv_fill_hwcap+0x14c/0x1ce [ 0.000000] [<ffffffe0000026d4>] 0xffffffe0000026d4 [ 0.000000] [<ffffffe0000006ec>] 0xffffffe0000006ec [ 0.000000] [<ffffffe000000076>] 0xffffffe000000076 Andreas. -- Andreas Schwab, SUSE Labs, sch...@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."