handler->devicefile for i.MX NAND is nand0.barebox, which lacks a /dev/
prefix. This is ok for detection, as device_detect_by_name expects the
cdev name and devpath_to_name() will strip a /dev/ if available.
For stat() however, we need to add back /dev/, otherwise the file can't
be found. Rework the code to do that.
This fixes an issue where usbgadget -A '' -b would not export a i.MX
NAND barebox update handler.
Fixes: 726a802456bc ("common: bbu: only add available handlers")
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
common/bbu.c | 37 ++++++++++++++++++-------------------
1 file changed, 18 insertions(+), 19 deletions(-)
diff --git a/common/bbu.c b/common/bbu.c
index d243ac89dd9f..3ec17216cb15 100644
--- a/common/bbu.c
+++ b/common/bbu.c
@@ -24,43 +24,42 @@
static LIST_HEAD(bbu_image_handlers);
-static void append_bbu_entry(struct bbu_handler *handler, struct file_list *files)
+static void append_bbu_entry(const char *_name,
+ const char *devicefile,
+ struct file_list *files)
{
char *name;
- name = basprintf("bbu-%s", handler->name);
+ name = basprintf("bbu-%s", _name);
- if (file_list_add_entry(files, name, handler->devicefile, 0))
+ if (file_list_add_entry(files, name, devicefile, 0))
pr_warn("duplicate partition name %s\n", name);
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) {
- if (bbu_handler_is_available(handler)) {
- append_bbu_entry(handler, files);
+ const char *cdevname;
+ struct stat s;
+ char *devpath;
+
+ cdevname = devpath_to_name(handler->devicefile);
+ device_detect_by_name(cdevname);
+
+ devpath = basprintf("/dev/%s", cdevname);
+
+ if (stat(devpath, &s) == 0) {
+ append_bbu_entry(handler->name, devpath, files);
} else {
pr_info("Skipping unavailable handler bbu-%s\n",
handler->name);
}
+
+ free(devpath);
}
}
--
2.30.2
