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Francesco Ruggeri 6bf6104573 fs/proc: fix potential unregister_sysctl_table hang ... The unregister_sysctl_table() function hangs if all references to its ctl_table_header structure are not dropped. This can happen sometimes because of a leak in proc_sys_lookup(): proc_sys_lookup() gets a reference to the table via lookup_entry(), but it does not release it when a subsequent call to sysctl_follow_link() fails. This patch fixes this leak by making sure the reference is always dropped on return. See also commit 076c3eed2c ("sysctl: Rewrite proc_sys_lookup introducing find_entry and lookup_entry") which reorganized this code in 3.4. Tested in Linux 3.4.4. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-09-17 10:32:03 -07:00
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Kconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Makefile	ns: proc files for namespace naming policy.	2011-05-10 14:31:44 -07:00
array.c	c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat	2012-05-31 17:49:32 -07:00
base.c	proc: do not allow negative offsets on /proc/<pid>/environ	2012-07-30 17:25:20 -07:00
cmdline.c	proc: switch /proc/cmdline to seq_file	2008-10-23 14:29:04 +04:00
consoles.c	console: rename acquire/release_console_sem() to console_lock/unlock()	2011-01-26 10:50:06 +10:00
cpuinfo.c	proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c	2008-10-23 15:05:11 +04:00
devices.c	proc: use seq_puts()/seq_putc() where possible	2011-01-13 08:03:16 -08:00
generic.c	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
inode.c	avoid iput() from flusher thread	2012-05-28 09:54:45 -07:00
internal.h	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
interrupts.c	proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c	2008-10-23 15:15:46 +04:00
kcore.c	fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static	2012-03-23 16:58:42 -07:00
kmsg.c	procfs: Use generic_file_llseek in /proc/kmsg	2010-04-09 16:35:41 +02:00
loadavg.c	sched, timers: cleanup avenrun users	2009-05-15 15:32:45 +02:00
meminfo.c	fs/proc/meminfo.c: fix compilation error	2011-12-09 07:50:28 -08:00
mmu.c	fs/proc/mmu.c: headers butchery	2007-10-17 08:42:48 -07:00
namespaces.c	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
nommu.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
page.c	pagemap: export KPF_THP	2012-03-21 17:54:57 -07:00
proc_devtree.c	of: Improve prom_update_property() function	2012-07-11 15:26:51 +10:00
proc_net.c	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
proc_sysctl.c	fs/proc: fix potential unregister_sysctl_table hang	2012-09-17 10:32:03 -07:00
proc_tty.c	proc: use seq_puts()/seq_putc() where possible	2011-01-13 08:03:16 -08:00
root.c	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
softirqs.c	proc: use seq_puts()/seq_putc() where possible	2011-01-13 08:03:16 -08:00
stat.c	proc: stats: Use arch_idle_time for idle and iowait times if available	2012-03-30 15:43:33 +02:00
task_mmu.c	proc/smaps: show amount of nonlinear ptes in vma	2012-05-31 17:49:29 -07:00
task_nommu.c	proc: remove mm_for_maps()	2012-05-31 17:49:28 -07:00
uptime.c	Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip	2011-12-19 19:23:15 +01:00
version.c	proc: switch /proc/version to seq_file	2008-10-23 14:19:58 +04:00
vmcore.c	fadump: Introduce cleanup routine to invalidate /proc/vmcore.	2012-02-23 10:50:02 +11:00