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lib: sbi: sbi_ecall: Check the range of SBI error

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We should also check if the return error code is greater than 0
(SBI_SUCCESS), as this is an invalid error.

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Yu Chien Peter Lin 2023-02-22 10:48:54 +08:00 • committed by Anup Patel
parent 2491242282
commit 67b2a40892
1 changed files with 1 additions and 1 deletions
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lib/sbi/sbi_ecall.c
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@ -120,7 +120,7 @@ int sbi_ecall_handler(struct sbi_trap_regs *regs)
trap.epc = regs->mepc; trap.epc = regs->mepc;
sbi_trap_redirect(regs, &trap); sbi_trap_redirect(regs, &trap);
} else { } else {
if (ret < SBI_LAST_ERR) { if (ret < SBI_LAST_ERR || SBI_SUCCESS < ret) {
sbi_printf("%s: Invalid error %d for ext=0x%lx " sbi_printf("%s: Invalid error %d for ext=0x%lx "
"func=0x%lx\n", __func__, ret, "func=0x%lx\n", __func__, ret,
extension_id, func_id); extension_id, func_id);