calling function fd_put() before rt_set_errno()
then tid->error can avoid being changed unexpectedly git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1940 bbd45198-f89e-11dd-88c7-29a3b14d5316
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then tid->error can avoid being changed unexpectedly git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1940 bbd45198-f89e-11dd-88c7-29a3b14d5316