nvme-print: change nvme_show_err parameter msg to fmt

To handle fmt with the variable length arguments.

Signed-off-by: Tokunori Ikegami <[email protected]>

Author: ikegami-t

nvme-print.c

@@ -534,9 +534,20 @@ static void nvme_show_cmd_err(const char *msg, bool admin,
 		nvme_show_status(err);
 }
 
-void nvme_show_err(int err, const char *msg)
+void nvme_show_err(int err, const char *fmt, ...)
 {
-	nvme_show_cmd_err(msg, false, NULL, err);
+	va_list ap;
+
+	_cleanup_free_ char *msg = NULL;
+
+	va_start(ap, fmt);
+
+	if (vasprintf(&msg, fmt, ap) < 0)
+		msg = NULL;
+
+	nvme_show_cmd_err(msg ? msg : alloc_error, false, NULL, err);
+
+	va_end(ap);
 }
 
 void nvme_show_io_cmd_err(const char *msg, struct nvme_passthru_cmd *cmd,

nvme-print.h

@@ -159,7 +159,7 @@ struct print_ops *nvme_get_stdout_print_ops(nvme_print_flags_t flags);
 struct print_ops *nvme_get_binary_print_ops(nvme_print_flags_t flags);
 
 void nvme_show_status(int status);
-void nvme_show_err(int err, const char *msg);
+void nvme_show_err(int err, const char *fmt, ...);
 void nvme_show_io_cmd_err(const char *msg, struct nvme_passthru_cmd *cmd,
 			  int err);
 void nvme_show_admin_cmd_err(const char *msg, struct nvme_passthru_cmd *cmd,