diff options
| author | Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> | 2020-10-01 16:20:39 +0000 |
|---|---|---|
| committer | Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> | 2020-10-01 16:20:39 +0000 |
| commit | 84f1815a7d440786a7eee447a173864229ca8ef4 (patch) | |
| tree | 037fa9b325765e44712dab8b2cb7067daed2e8f7 /arch/arm64/mm | |
| parent | 11f569dee0a848f60d01aa92d54334802d3d5c14 (diff) | |
| parent | a9518c1aec5b6a8e1a04bbd54e6ba9725ef0db4c (diff) | |
Merge tag 'v5.4.69' into 5.4-2.1.x-imx
This is the 5.4.69 stable release
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/fault.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index d26e6cd28953..2a7339aeb1ad 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -654,11 +654,13 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs) inf = esr_to_fault_info(esr); - /* - * Return value ignored as we rely on signal merging. - * Future patches will make this more robust. - */ - apei_claim_sea(regs); + if (user_mode(regs) && apei_claim_sea(regs) == 0) { + /* + * APEI claimed this as a firmware-first notification. + * Some processing deferred to task_work before ret_to_user(). + */ + return 0; + } if (esr & ESR_ELx_FnV) siaddr = NULL; |