scsi: ipr: Fix WARNING in ipr_init()

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ipr: Fix WARNING in ipr_init() ipr_init() will not call unregister_reboot_notifier() when pci_register_driver() fails, which causes a WARNING. Call unregister_reboot_notifier() when pci_register_driver() fails. notifier callback ipr_halt [ipr] already registered WARNING: CPU: 3 PID: 299 at kernel/notifier.c:29 notifier_chain_register+0x16d/0x230 Modules linked in: ipr(+) xhci_pci_renesas xhci_hcd ehci_hcd usbcore led_class gpu_sched drm_buddy video wmi drm_ttm_helper ttm drm_display_helper drm_kms_helper drm drm_panel_orientation_quirks agpgart cfbft CPU: 3 PID: 299 Comm: modprobe Tainted: G W 6.1.0-rc1-00190-g39508d23b672-dirty #332 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 RIP: 0010:notifier_chain_register+0x16d/0x230 Call Trace: <TASK> __blocking_notifier_chain_register+0x73/0xb0 ipr_init+0x30/0x1000 [ipr] do_one_initcall+0xdb/0x480 do_init_module+0x1cf/0x680 load_module+0x6a50/0x70a0 __do_sys_finit_module+0x12f/0x1c0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd

References

• https://git.kernel.org/stable/c/020b66023712b1cc42c6ab8b76e4ec13efe4a092
• https://git.kernel.org/stable/c/e965c4a60c1daa6e24355e35d78ca8e9f195196f
• https://git.kernel.org/stable/c/5debd337f534b122f7c5eac6557a41b5636c9b51
• https://git.kernel.org/stable/c/eccbec017c95b9b9ecd4c05c6f5234d1487c72cc
• https://git.kernel.org/stable/c/f4ba143b04a17559f2c85e18b47db117f40d8cf3
• https://git.kernel.org/stable/c/e59da172059f05c594fda03a9e8a3a0e1f5116c0
• https://git.kernel.org/stable/c/8c739021b2022fbc40f71d3fa2e9162beef0c84a
• https://git.kernel.org/stable/c/4399a8632e5f8f1f695d91d992c7d418fb451f07
• https://git.kernel.org/stable/c/e6f108bffc3708ddcff72324f7d40dfcd0204894