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lib: Handle failure of sbi_hartid_to_scratch() API

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The sbi_hartid_to_scratch() API can fail for non-existent HARTs so
all uses of sbi_hartid_to_scratch() API should check return value.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-03-14 18:55:53 +05:30
committed by Anup Patel
parent 3ebfe0ec5d
commit 209134d8f9
6 changed files with 29 additions and 8 deletions
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3
lib/sbi/sbi_tlb.c
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@@ -197,6 +197,9 @@ static void sbi_tlb_entry_process(struct sbi_tlb_info *tinfo)
sbi_hartmask_for_each_hart(rhartid, &tinfo->smask) {
rscratch = sbi_hartid_to_scratch(rhartid);
if (!rscratch)
continue;
rtlb_sync = sbi_scratch_offset_ptr(rscratch, tlb_sync_off);
while (atomic_raw_xchg_ulong(rtlb_sync, 1)) ;
}