tree 300fc2ae1daa2b7760118336babc0b002ac87399
parent b30d80546421c6ea919096b596887f496c80af0a
author Paolo Bonzini <pbonzini@redhat.com> 1446473857 +0100
committer Michael Tokarev <mjt@tls.msk.ru> 1446813758 +0300

pci-assign: do not test path with access() before opening

Using access() is a time-of-check/time-of-use race condition.  It is
okay to use them to provide better error messages, but that is pretty
much it.

In this case we can get the same error from fopen(), so just use
strerror and errno there---which actually improves the error
message most of the time.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>