qemu-sockets: do not test path with access() before unlinking
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. This is not one such case; on the other hand, access() *will* skip unlink() for a non-existent path, so ignore ENOENT return values from the unlink() system call. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NMarkus Armbruster <armbru@redhat.com> Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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