diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/bbu.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/common/bbu.c b/common/bbu.c index 1a1edda96b..cd7bdc40b7 100644 --- a/common/bbu.c +++ b/common/bbu.c @@ -4,6 +4,9 @@ * * Copyright (c) 2012 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix */ + +#define pr_fmt(fmt) "bbu: " fmt + #include <common.h> #include <bbu.h> #include <linux/list.h> @@ -32,12 +35,32 @@ static void append_bbu_entry(struct bbu_handler *handler, struct file_list *file free(name); } +static bool bbu_handler_is_available(struct bbu_handler *handler) +{ + struct stat s; + int ret; + + device_detect_by_name(devpath_to_name(handler->devicefile)); + + ret = stat(handler->devicefile, &s); + if (ret) + return false; + + return true; +} + void bbu_append_handlers_to_file_list(struct file_list *files) { struct bbu_handler *handler; - list_for_each_entry(handler, &bbu_image_handlers, list) - append_bbu_entry(handler, files); + list_for_each_entry(handler, &bbu_image_handlers, list) { + if (bbu_handler_is_available(handler)) { + append_bbu_entry(handler, files); + } else { + pr_info("Skipping unavailable handler bbu-%s\n", + handler->name); + } + } } int bbu_force(struct bbu_data *data, const char *fmt, ...) |