[PATCH] check for failed kmalloc in inftlmount.c

The INFTL mount code contains a kmalloc() followed by a memset() without
handling a possible memory allocation failure.

Signed-off-by:  <panagiotis.issaris@mech.kuleuven.ac.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>