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perlio: always guard against null function table
authorDavid Mitchell <davem@iabyn.com>
Fri, 19 Nov 2010 17:23:17 +0000 (17:23 +0000)
committerDavid Mitchell <davem@iabyn.com>
Fri, 26 Nov 2010 16:01:34 +0000 (16:01 +0000)
commitcc6623a84b782d30463b9046c2916f35064a7e3f
tree289b81a682570b4ed09aa10d712636fd16de643b
parent8995e67d43b457d0463f0581e10b390bc378c894
perlio: always guard against null function table

In some places it already checks for a null tab field; extend that
coverage. This is in preparation for a commit which may leave active
layers with a null tab field.
perlio.c