flash/nor: Make info function optional

[openocd.git] / src / flash / nor / tcl.c

diff --git a/src/flash/nor/tcl.c b/src/flash/nor/tcl.c
index 57c3be508de6551c64bfdd3267bcc4cf04932a1c..788d050b967b938ddb9863ee15d8e7c2a8feb335 100644 (file)
--- a/src/flash/nor/tcl.c
+++ b/src/flash/nor/tcl.c
@@ -101,12 +101,13 @@ COMMAND_HANDLER(handle_flash_info_command)
                                protect_state);
                }
 
-               *buf = '\0';    /* initialize buffer, otherwise it migh contain garbage if driver
-                                *function fails */
-               retval = p->driver->info(p, buf, sizeof(buf));
-               command_print(CMD_CTX, "%s", buf);
-               if (retval != ERROR_OK)
-                       LOG_ERROR("error retrieving flash info");
+               if (p->driver->info != NULL) {
+                       retval = p->driver->info(p, buf, sizeof(buf));
+                       if (retval == ERROR_OK)
+                               command_print(CMD_CTX, "%s", buf);
+                       else
+                               LOG_ERROR("error retrieving flash info");
+               }
        }
 
        return retval;