part: return -ENOSYS when get_info not valid.
In some case, get_info() interface can be NULL, add this check to stop
from crash.
Signed-off-by: schspa <schspa@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/disk/part.c b/disk/part.c
index a6a8f70..fe1ebd4 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -668,6 +668,13 @@
part_drv = part_driver_lookup_type(dev_desc);
if (!part_drv)
return -1;
+
+ if (!part_drv->get_info) {
+ log_debug("## Driver %s does not have the get_info() method\n",
+ part_drv->name);
+ return -ENOSYS;
+ }
+
for (i = 1; i < part_drv->max_entries; i++) {
ret = part_drv->get_info(dev_desc, i, info);
if (ret != 0) {