Fix the debug message for too large json data during write.

oniko · mbroz · commit c1b7ad89793f · 2025-03-07T15:44:41.000+01:00
diff --git a/lib/luks2/luks2_disk_metadata.c b/lib/luks2/luks2_disk_metadata.c
@@ -429,7 +429,7 @@ int LUKS2_disk_hdr_write(struct crypt_device *cd, struct luks2_hdr *hdr, struct
 	json_area_write_len = json_data_len = strlen(json_text);
 
 	if (json_data_len > (json_area_len - 1)) {
-		log_dbg(cd, "JSON is too large (%zu > %zu).", json_data_len, json_area_len);
+		log_dbg(cd, "JSON is too large (%zu > %zu).", json_data_len, json_area_len - 1);
 		return -EINVAL;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -429,7 +429,7 @@ int LUKS2_disk_hdr_write(struct crypt_device cd, struct luks2_hdr hdr, struct`
`429`	`429`	`json_area_write_len = json_data_len = strlen(json_text);`
`430`	`430`
`431`	`431`	`if (json_data_len > (json_area_len - 1)) {`
`432`		`- log_dbg(cd, "JSON is too large (%zu > %zu).", json_data_len, json_area_len);`
	`432`	`+ log_dbg(cd, "JSON is too large (%zu > %zu).", json_data_len, json_area_len - 1);`
`433`	`433`	`return -EINVAL;`
`434`	`434`	`}`
`435`	`435`