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efi_loader: efi_disk_register() should not fail

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Our algorithm for creating USB device paths may lead to duplicate device
paths which result in efi_disk_register() failing. Instead we should just
skip devices that cannot be registered as EFI block devices.

Fix a memory leak in efi_disk_add_dev() caused by the duplicate device
path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2021-11-20 13:56:02 +01:00
parent 3f73e79de8
commit cd9a26bfe5
1 changed files with 2 additions and 2 deletions
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4
lib/efi_loader/efi_disk.c
View file

@ -424,7 +424,7 @@ static efi_status_t efi_disk_add_dev(
&efi_block_io_guid, &diskobj->ops,
guid, NULL, NULL));
if (ret != EFI_SUCCESS)
return ret;
goto error;
/*
* On partitions or whole disks without partitions install the
@ -573,7 +573,7 @@ efi_status_t efi_disk_register(void)
if (ret) {
log_err("ERROR: failure to add disk device %s, r = %lu\n",
dev->name, ret & ~EFI_ERROR_MASK);
return ret;
continue;
}
disks++;