tree 3347213ad162a9570d6f4c5cffa1f8db7abb7cba
parent 27d68a36c4f1ca2fc6be82620843493462c08c51
author Linus Torvalds <torvalds@g5.osdl.org> 1151539774 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151539774 -0700

Fix vsnprintf off-by-one bug

The recent vsnprintf() fix introduced an off-by-one, and it's now
possible to overrun the target buffer by one byte.

The "end" pointer points to past the end of the buffer, so if we
have to truncate the result, it needs to be done though "end[-1]".

[ This is just an alternate and simpler patch to one proposed by Andrew
  and Jeremy, who actually noticed the problem ]

Acked-by: Andrew Morton <akpm@osdl.org>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>