rmmod PCIe AVMM DMA demo‘s driver cause system crash

error message:

[ 363.767890] ------------[ cut here ]------------
[ 363.767905] WARNING: CPU: 4 PID: 17120 at kernel/irq/manage.c:1348 __free_irq+0xb3/0x280
[ 363.767910] Trying to free already-free IRQ 11
[ 363.767913] Modules linked in: altera_dma(OE-) tcp_lp fuse xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter sunrpc vfat fat iTCO_wdt iTCO_vendor_support intel_pmc_core intel_powerclamp coretemp intel_rapl kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr snd_hda_codec_generic sg snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm pinctrl_cannonlake snd_timer pinctrl_intel snd acpi_pad soundcore wmi i2c_i801 ip_tables xfs libcrc32c sd_mod
[ 363.768014] crc_t10dif crct10dif_generic i915 crct10dif_pclmul crct10dif_common crc32c_intel serio_raw r8169 mii i2c_algo_bit video iosf_mbi ahci drm_kms
_helper i2c_hid libahci syscopyarea sysfillrect sysimgblt fb_sys_fops libata drm drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod
[ 363.768058] CPU: 4 PID: 17120 Comm: rmmod Kdump: loaded Tainted: G OE ------------ 3.10.0-957.el7.x86_64 #1
[ 363.768062] Hardware name: Gigabyte Technology Co., Ltd. B360M POWER/B360M POWER, BIOS F4 07/13/2018
[ 363.768066] Call Trace:
[ 363.768081] [<ffffffff8b761dc1>] dump_stack+0x19/0x1b
[ 363.768090] [<ffffffff8b097648>] __warn+0xd8/0x100
[ 363.768099] [<ffffffff8b0976cf>] warn_slowpath_fmt+0x5f/0x80
[ 363.768108] [<ffffffff8b14a953>] __free_irq+0xb3/0x280
[ 363.768115] [<ffffffff8b14aba9>] free_irq+0x39/0x90
[ 363.768125] [<ffffffffc0939593>] altera_pci_remove+0xac/0x17a [altera_dma]
[ 363.768134] [<ffffffff8b3c607e>] pci_device_remove+0x3e/0xc0
[ 363.768144] [<ffffffff8b4a7cd2>] __devic