tree e4ffc2f6ca6013bab97bdb77b80e98b46a8d01e1
parent 6e644c3126149b65460610fe5a00d8a162092abe
author Alexey Dobriyan <adobriyan@gmail.com> 1216975709 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1217008424 -0700

proc: always do ->release

Current two-stage scheme of removing PDE emphasizes one bug in proc:

		open
				rmmod
				remove_proc_entry
		close

->release won't be called because ->proc_fops were cleared.  In simple
cases it's small memory leak.

For every ->open, ->release has to be done.  List of openers is introduced
which is traversed at remove_proc_entry() if neeeded.

Discussions with Al long ago (sigh).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>