From: Tobias Stoeckmann <tobias@stoeckmann.org>
Date: Sun, 12 Apr 2026 11:22:13 +0000 (+0200)
Subject: irqtop/lsirq: Handle EOF in get_irqinfo
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=2e3b07d28b2843c2d6b0c4d91e3e2e7aa607f27c;p=thirdparty%2Futil-linux.git

irqtop/lsirq: Handle EOF in get_irqinfo

If an empty file is passed to get_irqinfo, getline fails without setting
errno because EOF is not an error condition, even though -1 is returned.

Suppress error message but keep the regular error handling.

Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
---

diff --git a/sys-utils/irq-common.c b/sys-utils/irq-common.c
index 4efe19277..37f839b44 100644
--- a/sys-utils/irq-common.c
+++ b/sys-utils/irq-common.c
@@ -257,7 +257,8 @@ static struct irq_stat *get_irqinfo(const char *input_file, int softirq,
 
 	/* read header firstly */
 	if (getline(&line, &len, irqfile) < 0) {
-		warn(_("cannot read %s"), input_file);
+		if (!feof(irqfile))
+			warn(_("cannot read %s"), input_file);
 		goto close_file;
 	}