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pinctrl: debug: 32bit dump register fail [1/1]

Browse Source 
PD#SWPL-212218

Problem:
When using debug function to dump 32bit pinctrl
registers, panic may occur

Solution:
use WRITE_ONECE to do assignment.

Verify:
txhd2_bs311

Change-Id: Ica4db714ac9cdb1f25b8b28bbac5304ec39d7355
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
This commit is contained in:
Qianggui Song
2025-04-30 06:13:16 +00:00
committed by gerrit autosubmit
parent 3d72d61848
commit 26a3437c2e
1 changed files with 4 additions and 1 deletions
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drivers/gpio/pinctrl/pinctrl-meson.c
+4 -1
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@@ -1082,7 +1082,10 @@ static __nocfi u32 vaddr_to_paddr(unsigned long vaddr)
pgd_f = phys_to_virt(ttbr1_el1);
local_init_mm = container_of(&pgd_f, struct mm_struct, pgd);
#else
local_init_mm = init_task.active_mm;
/* local_init_mm may be NULL for compiler optimization */
WRITE_ONCE(local_init_mm, init_task.active_mm);
if (!local_init_mm)
goto failed;
#endif
/* table walking */
pgd = pgd_offset(local_init_mm, vaddr);