mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 04:55:16 +07:00
51614b26a0
This patch fixes ipmi crash on parisc introduced in the kernel 4.15-rc. The pointer io.io_setup is not initialized and thus it causes crash in try_smi_init when attempting to call new_smi->io.io_setup. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
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#include <linux/module.h>
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#include <asm/hardware.h> /* for register_parisc_driver() stuff */
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#include <asm/parisc-device.h>
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#include "ipmi_si.h"
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static bool parisc_registered;
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static int __init ipmi_parisc_probe(struct parisc_device *dev)
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{
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struct si_sm_io io;
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memset(&io, 0, sizeof(io));
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io.si_type = SI_KCS;
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io.addr_source = SI_DEVICETREE;
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io.addr_type = IPMI_MEM_ADDR_SPACE;
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io.addr_data = dev->hpa.start;
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io.regsize = 1;
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io.regspacing = 1;
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io.regshift = 0;
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io.irq = 0; /* no interrupt */
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io.irq_setup = NULL;
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io.dev = &dev->dev;
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dev_dbg(&dev->dev, "addr 0x%lx\n", io.addr_data);
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return ipmi_si_add_smi(&io);
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}
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static int __exit ipmi_parisc_remove(struct parisc_device *dev)
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{
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return ipmi_si_remove_by_dev(&dev->dev);
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}
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static const struct parisc_device_id ipmi_parisc_tbl[] __initconst = {
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{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
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{ 0, }
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};
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MODULE_DEVICE_TABLE(parisc, ipmi_parisc_tbl);
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static struct parisc_driver ipmi_parisc_driver __refdata = {
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.name = "ipmi",
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.id_table = ipmi_parisc_tbl,
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.probe = ipmi_parisc_probe,
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.remove = __exit_p(ipmi_parisc_remove),
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};
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void ipmi_si_parisc_init(void)
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{
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register_parisc_driver(&ipmi_parisc_driver);
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parisc_registered = true;
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}
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void ipmi_si_parisc_shutdown(void)
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{
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if (parisc_registered)
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unregister_parisc_driver(&ipmi_parisc_driver);
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}
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