Patch "selftests: firmware: send expected errors to /dev/null" has been added to the 4.4-stable tree

Patch "selftests: firmware: send expected errors to /dev/null" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    selftests: firmware: send expected errors to /dev/null

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     selftests-firmware-send-expected-errors-to-dev-null.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 880444e214cfd293a2e8cc4bd3505f7ffa6ce33a Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@kernel.org>
Date: Fri, 16 Dec 2016 03:10:35 -0800
Subject: selftests: firmware: send expected errors to /dev/null

From: Luis R. Rodriguez <mcgrof@kernel.org>

commit 880444e214cfd293a2e8cc4bd3505f7ffa6ce33a upstream.

Error that we expect should not be spilled to stdout.

Without this we get:

./fw_filesystem.sh: line 58: printf: write error: Invalid argument
./fw_filesystem.sh: line 63: printf: write error: No such device
./fw_filesystem.sh: line 69: echo: write error: No such file or directory
./fw_filesystem.sh: filesystem loading works
./fw_filesystem.sh: async filesystem loading works

With it:

./fw_filesystem.sh: filesystem loading works
./fw_filesystem.sh: async filesystem loading works

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
[AmitP: Dropped the async trigger testing parts from original commit]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/firmware/fw_filesystem.sh |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -48,13 +48,13 @@ echo "ABCD0123" >"$FW"
 
 NAME=$(basename "$FW")
 
-if printf '\000' >"$DIR"/trigger_request; then
+if printf '\000' >"$DIR"/trigger_request 2> /dev/null; then
 	echo "$0: empty filename should not succeed" >&2
 	exit 1
 fi
 
 # Request a firmware that doesn't exist, it should fail.
-if echo -n "nope-$NAME" >"$DIR"/trigger_request; then
+if echo -n "nope-$NAME" >"$DIR"/trigger_request 2> /dev/null; then
 	echo "$0: firmware shouldn't have loaded" >&2
 	exit 1
 fi


Patches currently in stable-queue which might be from mcgrof@kernel.org are

queue-4.4/tools-firmware-check-for-distro-fallback-udev-cancel-rule.patch
queue-4.4/selftests-firmware-send-expected-errors-to-dev-null.patch