tree cbe36bcaedc531379816b9fa63a0ed191bba33f7
parent 93db616fd6fc2de9133e74b547de1e57f9647a71
author Allen.Wang <Allen_Wang@quantatw.com> 1723709860 +0800
committer Patrick Williams <patrick@stwcx.xyz> 1723832475 +0000

meta-facebook: yosemite4: Fix yosemite4-sys-init fail to start

yosemite4-sys-init fails while mknod which already exist,
check if node exist to avoid fail exit.

Tested:

-before:
root@bmc:~# systemctl status yosemite4-sys-init.service
× yosemite4-sys-init.service - Yosemite4 Early System Init
     Loaded: loaded (/usr/lib/systemd/system/yosemite4-sys-init.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Wed 2024-08-14 20:18:23 PDT; 38s ago
    Process: 644 ExecStart=/usr/libexec/yosemite4-early-sys-init (code=exited, status=1/FAILURE)
   Main PID: 644 (code=exited, status=1/FAILURE)
        CPU: 642ms

Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set EN_P3V_BAT_SCALED_R = 0 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set FM_BMC_SLED_CYCLE_R = 0 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set NIC0_MAIN_PWR_EN = 1 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set NIC1_MAIN_PWR_EN = 1 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set NIC2_MAIN_PWR_EN = 1 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[644]: set_gpio: set NIC3_MAIN_PWR_EN = 1 success
Aug 14 20:18:23 bmc Yosemite4 Early Init[735]: mknod: /dev/mem: File exists
Aug 14 20:18:23 bmc systemd[1]: yosemite4-sys-init.service: Main process exited, code=exited, status=1/FAILURE
Aug 14 20:18:23 bmc systemd[1]: yosemite4-sys-init.service: Failed with result 'exit-code'.
Aug 14 20:18:23 bmc systemd[1]: Failed to start Yosemite4 Early System Init.

-after:
root@bmc:~# systemctl status yosemite4-sys-init.service
○ yosemite4-sys-init.service - Yosemite4 Early System Init
     Loaded: loaded (/usr/lib/systemd/system/yosemite4-sys-init.service; enabled; preset: enabled)
     Active: inactive (dead) since Thu 2024-08-15 00:23:02 PDT; 1h 1min ago
    Process: 646 ExecStart=/usr/libexec/yosemite4-early-sys-init (code=exited, status=0/SUCCESS)
   Main PID: 646 (code=exited, status=0/SUCCESS)
        CPU: 658ms

Signed-off-by: Allen.Wang <Allen_Wang@quantatw.com>
Change-Id: I3e4ec67f8eeb4389b970d60c7cbca05d9474db7a