docs: mm: slab.h: fix a broken cross-reference

There is a typo at the cross-reference link, causing this warning:

  include/linux/slab.h:11: WARNING: undefined label: memory-allocation (if the link has no caption the label must precede a section header)

Signed-off-by: Mauro Carvalho Chehab <>
Signed-off-by: Andrew Morton <>
Cc: Jonathan Corbet <>
Cc: Christoph Lameter <>
Cc: Pekka Enberg <>
Cc: David Rientjes <>
Cc: Joonsoo Kim <>
Signed-off-by: Linus Torvalds <>
1 file changed