iov_iter: saner checks for attempt to copy to/from iterator

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instead of "don't do it to ITER_PIPE" check for ->data_source being
false on copying from iterator.  Check for !->data_source for
copying to iterator, while we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2022-09-15 20:11:15 -04:00

parent fc02f33787

commit a41dad905e

1 changed files with 17 additions and 14 deletions

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lib/iov_iter.c

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