Avoid that the following error messages are reported when redirecting stdin:

stty: 'standard input': Inappropriate ioctl for device
stty: 'standard input': Inappropriate ioctl for device

Cc: Logan Gunthorpe <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Fixes: a987b10bc179 ("nvme: Ensure all ports and subsystems are removed on 
cleanup")
Signed-off-by: Bart Van Assche <[email protected]>
---
 tests/nvme/rc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/nvme/rc b/tests/nvme/rc
index d4e18e635dea..40f0413d32d2 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -36,7 +36,7 @@ _cleanup_nvmet() {
        fi
 
        # Don't let successive Ctrl-Cs interrupt the cleanup processes
-       stty -isig
+       trap '' SIGINT
 
        shopt -s nullglob
 
@@ -66,7 +66,7 @@ _cleanup_nvmet() {
        done
 
        shopt -u nullglob
-       stty isig
+       trap SIGINT
 
        modprobe -r nvme-loop 2>/dev/null
        modprobe -r nvmet 2>/dev/null
-- 
2.22.0.770.g0f2c4a37fd-goog

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