linux-kernel - [PATCH] jffs2: print symbolic error name instead of error code

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Message-ID: <20240211003907.167891-1-christian@heusel.eu>
Date: Sun, 11 Feb 2024 01:39:04 +0100
From: Christian Heusel <christian@...sel.eu>
To: David Woodhouse <dwmw2@...radead.org>,
	Richard Weinberger <richard@....at>,
	Christian Heusel <christian@...sel.eu>,
	linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org
Subject: [PATCH] jffs2: print symbolic error name instead of error code

Utilize the %pe print specifier to get the symbolic error name as a
string (i.e "-ENOMEM") in the log message instead of the error code to
increase its readablility.

This change was suggested in
https://lore.kernel.org/all/92972476-0b1f-4d0a-9951-af3fc8bc6e65@suswa.mountain/

Signed-off-by: Christian Heusel <christian@...sel.eu>
---
 fs/jffs2/background.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 6da92ecaf66d..bb0ee1a59e71 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -44,8 +44,8 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)

 	tsk = kthread_run(jffs2_garbage_collect_thread, c, "jffs2_gcd_mtd%d", c->mtd->index);
 	if (IS_ERR(tsk)) {
-		pr_warn("fork failed for JFFS2 garbage collect thread: %ld\n",
-			-PTR_ERR(tsk));
+		pr_warn("fork failed for JFFS2 garbage collect thread: %pe\n",
+			tsk);
 		complete(&c->gc_thread_exit);
 		ret = PTR_ERR(tsk);
 	} else {
--
2.43.1