tree 5c3e3cf8c40babc88ae772dce0c90c0c40140baa
parent bce9a234ce7d8dddbfcec28e37ea58b5d8f6003d
author Catalin Marinas <catalin.marinas@arm.com> 1159520425 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159546694 -0700

[PATCH] Fix memory leak in vc_resize/vc_allocate

Memory leaks can happen in the vc_resize() function in drivers/char/vt.c
because of the vc->vc_screenbuf variable overriding in vc_allocate().  The
kmemleak reported trace is as follows:

  <__kmalloc>
  <vc_resize>
  <fbcon_init>
  <visual_init>
  <vc_allocate>
  <con_open>
  <tty_open>
  <chrdev_open>

This patch no longer allocates a screen buffer in vc_allocate() if it was
already allocated by vc_resize().

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>