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authorChristoph Lameter2007-10-16 01:24:46 -0700
committerLinus Torvalds2007-10-16 09:42:53 -0700
commitef8b4520bd9f8294ffce9abd6158085bde5dc902 (patch)
treec099a16691ac06208f4d3d65b71e7adaf7361fcd /Documentation/MSI-HOWTO.txt
parent0da7e01f5f37f441cccd7c8c0586e06db0981907 (diff)
Slab allocators: fail if ksize is called with a NULL parameter
A NULL pointer means that the object was not allocated. One cannot determine the size of an object that has not been allocated. Currently we return 0 but we really should BUG() on attempts to determine the size of something nonexistent. krealloc() interprets NULL to mean a zero sized object. Handle that separately in krealloc(). Signed-off-by: Christoph Lameter <clameter@sgi.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/MSI-HOWTO.txt')
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