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6434b33faa
If sclp_init() fails it only partially cleans up: if there are multiple
failing calls to sclp_init() sclp_state_change_event will be added several
times to sclp_reg_list, which results in the following warning:
------------[ cut here ]------------
list_add double add: new=000003ffe1598c10, prev=000003ffe1598bf0, next=000003ffe1598c10.
WARNING: CPU: 0 PID: 1 at lib/list_debug.c:35 __list_add_valid_or_report+0xde/0xf8
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-rc3
Krnl PSW : 0404c00180000000 000003ffe0d6076a (__list_add_valid_or_report+0xe2/0xf8)
R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3
...
Call Trace:
[<000003ffe0d6076a>] __list_add_valid_or_report+0xe2/0xf8
([<000003ffe0d60766>] __list_add_valid_or_report+0xde/0xf8)
[<000003ffe0a8d37e>] sclp_init+0x40e/0x450
[<000003ffe00009f2>] do_one_initcall+0x42/0x1e0
[<000003ffe15b77a6>] do_initcalls+0x126/0x150
[<000003ffe15b7a0a>] kernel_init_freeable+0x1ba/0x1f8
[<000003ffe0d6650e>] kernel_init+0x2e/0x180
[<000003ffe000301c>] __ret_from_fork+0x3c/0x60
[<000003ffe0d759ca>] ret_from_fork+0xa/0x30
Fix this by removing sclp_state_change_event from sclp_reg_list when
sclp_init() fails.
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
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| .. | ||
| con3215.c | ||
| con3270.c | ||
| ctrlchar.c | ||
| ctrlchar.h | ||
| defkeymap.c | ||
| defkeymap.map | ||
| diag_ftp.c | ||
| diag_ftp.h | ||
| fs3270.c | ||
| hmcdrv_cache.c | ||
| hmcdrv_cache.h | ||
| hmcdrv_dev.c | ||
| hmcdrv_dev.h | ||
| hmcdrv_ftp.c | ||
| hmcdrv_ftp.h | ||
| hmcdrv_mod.c | ||
| Kconfig | ||
| keyboard.c | ||
| keyboard.h | ||
| Makefile | ||
| monreader.c | ||
| monwriter.c | ||
| raw3270.c | ||
| raw3270.h | ||
| sclp_ap.c | ||
| sclp_cmd.c | ||
| sclp_con.c | ||
| sclp_config.c | ||
| sclp_cpi_sys.c | ||
| sclp_cpi_sys.h | ||
| sclp_ctl.c | ||
| sclp_diag.h | ||
| sclp_early_core.c | ||
| sclp_early.c | ||
| sclp_ftp.c | ||
| sclp_ftp.h | ||
| sclp_ocf.c | ||
| sclp_pci.c | ||
| sclp_quiesce.c | ||
| sclp_rw.c | ||
| sclp_rw.h | ||
| sclp_sd.c | ||
| sclp_sdias.c | ||
| sclp_sdias.h | ||
| sclp_tty.c | ||
| sclp_tty.h | ||
| sclp_vt220.c | ||
| sclp.c | ||
| sclp.h | ||
| tape_34xx.c | ||
| tape_3590.c | ||
| tape_3590.h | ||
| tape_char.c | ||
| tape_class.c | ||
| tape_class.h | ||
| tape_core.c | ||
| tape_proc.c | ||
| tape_std.c | ||
| tape_std.h | ||
| tape.h | ||
| uvdevice.c | ||
| vmcp.c | ||
| vmlogrdr.c | ||
| vmur.c | ||
| vmur.h | ||
| zcore.c | ||