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-rw-r--r--cpukit/libcsupport/src/fcntl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/libcsupport/src/fcntl.c b/cpukit/libcsupport/src/fcntl.c
index 5a10f9139b..ddaf447060 100644
--- a/cpukit/libcsupport/src/fcntl.c
+++ b/cpukit/libcsupport/src/fcntl.c
@@ -47,7 +47,7 @@ static int duplicate_iop( rtems_libio_t *iop )
*/
rv = (*diop->pathinfo.handlers->open_h)( diop, NULL, oflag, 0 );
if ( rv == 0 ) {
- rv = diop - rtems_libio_iops;
+ rv = rtems_libio_iop_to_descriptor( diop );
} else {
rtems_libio_free( diop );
}