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part: return -ENOSYS when get_info not valid.

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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>
This commit is contained in:
schspa 2021-10-20 20:15:55 +08:00 committed by Tom Rini
parent 0171d056ec
commit 50f7b2effd
1 changed files with 7 additions and 0 deletions
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7
disk/part.c
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@ -668,6 +668,13 @@ int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name,
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) {