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16d78bc255
dm_{read,write}() were doing USB transfers of data on stack, which isn't allowed. Fix it by kmalloc'ing a temporary buffer. Clean up the error handling for short transfers while we're at it. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>