From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Sat, 28 Feb 2026 08:51:36 +0000 (+0100)
Subject: crash_dump: remove redundant less-than-zero check
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c02474fe1a62bb20548abd37b1d492a43a8b906e;p=thirdparty%2Fkernel%2Fstable.git

crash_dump: remove redundant less-than-zero check

'key_count' is an 'unsigned int' and cannot be less than zero. Remove
the redundant condition.

Link: https://lkml.kernel.org/r/20260228085136.861971-2-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/crash_dump_dm_crypt.c b/kernel/crash_dump_dm_crypt.c
index a20d4097744a..5ce958d069dd 100644
--- a/kernel/crash_dump_dm_crypt.c
+++ b/kernel/crash_dump_dm_crypt.c
@@ -115,7 +115,7 @@ static int restore_dm_crypt_keys_to_thread_keyring(void)
 
 	addr = dm_crypt_keys_addr;
 	dm_crypt_keys_read((char *)&key_count, sizeof(key_count), &addr);
-	if (key_count < 0 || key_count > KEY_NUM_MAX) {
+	if (key_count > KEY_NUM_MAX) {
 		kexec_dprintk("Failed to read the number of dm-crypt keys\n");
 		return -1;
 	}