tree 2c098f197a80847510b7f0e98ca2209e89dfd32f
parent 5474c120aafe78ca54bf272f7a01107c42da2b21
author Jesper Juhl <jesper.juhl@gmail.com> 1151239629 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151254859 -0700

[PATCH] ensure NULL deref can't possibly happen in is_exported()

If CONFIG_KALLSYMS is defined and if it should happen that is_exported() is
given a NULL 'mod' and lookup_symbol(name, __start___ksymtab,
__stop___ksymtab) returns 0, then we'll end up dereferencing a NULL
pointer.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>