From: Matthias Kruk <m@m10k.eu>
Date: Sat, 8 Oct 2022 08:24:47 +0000 (+0900)
Subject: include/mutex: Don't write to stderr when mutex_unlock() fails
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=c196803cc8c62d959c8ec9a3c76507a94f7775b1;p=toolbox

include/mutex: Don't write to stderr when mutex_unlock() fails

When a mutex could not be unlocked, the rm call in mutex_unlock()
writes an error message directly to stderr. However, the function
should only return an error without writing to stderr.

This commit modifies mutex_unlock() so that it does not write to
stderr.
---

diff --git a/include/mutex.sh b/include/mutex.sh
index 32ee320..f240938 100644
--- a/include/mutex.sh
+++ b/include/mutex.sh
@@ -62,7 +62,7 @@ mutex_unlock() {
 		return 2
 	fi
 
-	if ! rm "$lock"; then
+	if ! rm "$lock" 2>/dev/null; then
 		return 3
 	fi