pravin shelar 0e82c76359 genetlink: Fix generic netlink family unregister ... This patch fixes a typo in unregister operation. Following crash is fixed by this patch. It can be easily reproduced by repeating modprobe and rmmod module that uses genetlink. [ 261.446686] BUG: unable to handle kernel paging request at ffffffffa0264088 [ 261.448921] IP: [<ffffffff813cb70e>] strcmp+0xe/0x30 [ 261.450494] PGD 1c09067 [ 261.451266] PUD 1c0a063 [ 261.452091] PMD 8068d5067 [ 261.452525] PTE 0 [ 261.453164] [ 261.453618] Oops: 0000 [#1] SMP [ 261.454577] Modules linked in: openvswitch(+) ... [ 261.480753] RIP: 0010:[<ffffffff813cb70e>] [<ffffffff813cb70e>] strcmp+0xe/0x30 [ 261.483069] RSP: 0018:ffffc90003c0bc28 EFLAGS: 00010282 [ 261.510145] Call Trace: [ 261.510896] [<ffffffff816f10ca>] genl_family_find_byname+0x5a/0x70 [ 261.512819] [<ffffffff816f2319>] genl_register_family+0xb9/0x630 [ 261.514805] [<ffffffffa02840bc>] dp_init+0xbc/0x120 [openvswitch] [ 261.518268] [<ffffffff8100217d>] do_one_initcall+0x3d/0x160 [ 261.525041] [<ffffffff811808a9>] do_init_module+0x60/0x1f1 [ 261.526754] [<ffffffff8110687f>] load_module+0x22af/0x2860 [ 261.530144] [<ffffffff81107026>] SYSC_finit_module+0x96/0xd0 [ 261.531901] [<ffffffff8110707e>] SyS_finit_module+0xe/0x10 [ 261.533605] [<ffffffff8100391e>] do_syscall_64+0x6e/0x180 [ 261.535284] [<ffffffff817c2faf>] entry_SYSCALL64_slow_path+0x25/0x25 [ 261.546512] RIP [<ffffffff813cb70e>] strcmp+0xe/0x30 [ 261.550198] ---[ end trace 76505a814dd68770 ]--- Fixes: 2ae0f17df1 ("genetlink: use idr to track families"). Reported-by: Jarno Rajahalme <jarno@ovn.org> CC: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Pravin B Shelar <pshelar@ovn.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-10-29 20:58:15 -04:00
..
af_netlink.c	netlink: do not enter direct reclaim from netlink_dump()	2016-10-06 20:53:13 -04:00
af_netlink.h	net/netlink/af_netlink.h: Remove unused structure.	2016-06-09 22:26:24 -07:00
diag.c	netlink: don't forget to release a rhashtable_iter structure	2016-09-07 17:29:38 -07:00
genetlink.c	genetlink: Fix generic netlink family unregister	2016-10-29 20:58:15 -04:00
Kconfig	netlink: remove mmapped netlink support	2016-02-18 11:42:18 -05:00
Makefile	netlink: Diag core and basic socket info dumping (v2)	2013-03-21 12:38:03 -04:00