Blackfin arch: fix bug libstdc++ calling writev with an iovec containing { NULL, 0 } fails on Blackfin

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Fix a problem reported in the forums - libstdc++ can call writev with an
iovec containing { NULL, 0 }, which works fine on i686-linux, but fails on
Blackfin.  Fixed by allowing size 0 transfers to/from userspace regardless
of the address.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

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Bernd Schmidt 2007-10-10 17:54:19 +08:00 • committed by Bryan Wu

parent ef4a47db52

commit bc41bb1165

1 changed files with 2 additions and 1 deletions

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arch/blackfin/kernel/process.c

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