Li Zetao 4fe3c88552 atm: idt77252: fix kmemleak when rmmod idt77252 ... There are memory leaks reported by kmemleak: unreferenced object 0xffff888106500800 (size 128): comm "modprobe", pid 1017, jiffies 4297787785 (age 67.152s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000970ce626>] __kmem_cache_alloc_node+0x20c/0x380 [<00000000fb5f78d9>] kmalloc_trace+0x2f/0xb0 [<000000000e947e2a>] idt77252_init_one+0x2847/0x3c90 [idt77252] [<000000006efb048e>] local_pci_probe+0xeb/0x1a0 ... unreferenced object 0xffff888106500b00 (size 128): comm "modprobe", pid 1017, jiffies 4297787785 (age 67.152s) hex dump (first 32 bytes): 00 20 3d 01 80 88 ff ff 00 20 3d 01 80 88 ff ff . =...... =..... f0 23 3d 01 80 88 ff ff 00 20 3d 01 00 00 00 00 .#=...... =..... backtrace: [<00000000970ce626>] __kmem_cache_alloc_node+0x20c/0x380 [<00000000fb5f78d9>] kmalloc_trace+0x2f/0xb0 [<00000000f451c5be>] alloc_scq.constprop.0+0x4a/0x400 [idt77252] [<00000000e6313849>] idt77252_init_one+0x28cf/0x3c90 [idt77252] The root cause is traced to the vc_maps which alloced in open_card_oam() are not freed in close_card_oam(). The vc_maps are used to record open connections, so when close a vc_map in close_card_oam(), the memory should be freed. Moreover, the ubr0 is not closed when close a idt77252 device, leading to the memory leak of vc_map and scq_info. Fix them by adding kfree in close_card_oam() and implementing new close_card_ubr0() to close ubr0. Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Li Zetao <lizetao1@huawei.com> Reviewed-by: Francois Romieu <romieu@fr.zoreil.com> Link: https://lore.kernel.org/r/20230320143318.2644630-1-lizetao1@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2023-03-21 20:19:28 -07:00
..
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
adummy.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
atmtcp.c	atm: atmtcp: Constify atmtcp_v_dev_ops	2020-09-28 16:03:30 -07:00
eni.c	atm: eni: Add check for dma_map_single	2022-03-15 11:01:52 +00:00
eni.h
fore200e.c	atm: fore200e: Fix fall-through warnings for Clang	2021-05-17 18:50:49 -05:00
fore200e.h	fore200e: devirtualize dma alloc calls	2018-10-10 22:38:50 -07:00
he.c	atm: he: Use the bitmap API to allocate bitmaps	2022-07-11 19:49:53 -07:00
he.h
idt77105.c	atm: idt77252: fix null-ptr-dereference	2021-03-08 15:16:30 -08:00
idt77105.h
idt77252_tables.h
idt77252.c	atm: idt77252: fix kmemleak when rmmod idt77252	2023-03-21 20:19:28 -07:00
idt77252.h	atm: idt77252: fix build broken on amd64	2021-02-15 12:36:27 -08:00
iphase.c	atm: iphase: Fix typo in comment	2022-06-17 20:17:18 -07:00
iphase.h	atm: Replace custom isprint() with generic analogue	2021-05-10 14:51:01 -07:00
Kconfig	net: atm: remove support for ZeitNet ZN122x ATM devices	2022-04-27 12:22:56 +01:00
lanai.c	atm: lanai: dont run lanai_dev_close if not open	2021-03-01 13:18:54 -08:00
Makefile	net: atm: remove support for ZeitNet ZN122x ATM devices	2022-04-27 12:22:56 +01:00
midway.h
nicstar.c	atm: nicstar: Use kcalloc() to simplify code	2022-02-19 16:38:12 +00:00
nicstar.h
nicstarmac.c	net: remove comments that mention obsolete __SLOW_DOWN_IO	2022-04-26 17:09:24 -07:00
nicstarmac.copyright
solos-attrlist.c
solos-pci.c	net/atm: remove the atmdev_ops {get, set}sockopt methods	2020-07-19 18:16:40 -07:00
suni.c	atm: delete include/linux/atm_suni.h	2021-03-15 12:43:10 -07:00
suni.h
tonga.h
zeprom.h	atm: Fix typo	2021-05-21 13:55:32 -07:00