ASoC: meson: axg-card: fix 'use-after-free'

In the Linux kernel, the following vulnerability has been resolved:

ASoC: meson: axg-card: fix 'use-after-free'

Buffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()',

so move 'pad' pointer initialization after this function when memory is

already reallocated.

Kasan bug report:

==================================================================

BUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc

Read of size 8 at addr ffff000000e8b260 by task modprobe/356

CPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1

Call trace:

dump_backtrace+0x94/0xec

show_stack+0x18/0x24

dump_stack_lvl+0x78/0x90

print_report+0xfc/0x5c0

kasan_report+0xb8/0xfc

__asan_load8+0x9c/0xb8

axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card]

meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils]

platform_probe+0x8c/0xf4

really_probe+0x110/0x39c

__driver_probe_device+0xb8/0x18c

driver_probe_device+0x108/0x1d8

__driver_attach+0xd0/0x25c

bus_for_each_dev+0xe0/0x154

driver_attach+0x34/0x44

bus_add_driver+0x134/0x294

driver_register+0xa8/0x1e8

__platform_driver_register+0x44/0x54

axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card]

do_one_initcall+0xdc/0x25c

do_init_module+0x10c/0x334

load_module+0x24c4/0x26cc

init_module_from_file+0xd4/0x128

__arm64_sys_finit_module+0x1f4/0x41c

invoke_syscall+0x60/0x188

el0_svc_common.constprop.0+0x78/0x13c

do_el0_svc+0x30/0x40

el0_svc+0x38/0x78

el0t_64_sync_handler+0x100/0x12c

el0t_64_sync+0x190/0x194