diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index a8176c875f55e..53428aab5dd88 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -70,9 +70,8 @@ static int sysfs_kf_seq_show(struct seq_file *sf, void *v)
 	 * The code works fine with PAGE_SIZE return but it's likely to
 	 * indicate truncated result or overflow in normal use cases.
 	 */
-	if (count >= (ssize_t)PAGE_SIZE) {
-		printk("fill_read_buffer: %pS returned bad count\n",
-				ops->show);
+	if (count >= PAGE_SIZE) {
+		WARN(1, "OOB write or bad count %zd at %pS\n", count, ops->show);
 		/* Try to struggle along */
 		count = PAGE_SIZE - 1;
 	}