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-rw-r--r--c/src/exec/libcsupport/src/read.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/read.c b/c/src/exec/libcsupport/src/read.c
index 52f61d9b50..e2866744a4 100644
--- a/c/src/exec/libcsupport/src/read.c
+++ b/c/src/exec/libcsupport/src/read.c
@@ -25,6 +25,7 @@ ssize_t read(
rtems_libio_check_fd( fd );
iop = rtems_libio_iop( fd );
+ rtems_libio_check_is_open(iop);
rtems_libio_check_buffer( buffer );
rtems_libio_check_count( count );
rtems_libio_check_permissions( iop, LIBIO_FLAGS_READ );