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lib: sbi_hsm: Ensure errors are consistent with spec

HSM functions define when SBI_ERR_INVALID_PARAM should be returned.
Ensure it's not used for reasons that don't meet the definitions by
using the catch-all code, SBI_ERR_FAILED, for those reasons instead.
Also, in one case sbi_hart_suspend() may have returned SBI_ERR_DENIED,
which isn't defined for that function at all. Use SBI_ERR_FAILED for
that case too.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Andrew Jones 1 year ago
parent
commit
c88e039ec2
1 changed files with 3 additions and 3 deletions
  1. 3 3
      lib/sbi/sbi_hsm.c

+ 3 - 3
lib/sbi/sbi_hsm.c

@@ -402,7 +402,7 @@ int sbi_hsm_hart_suspend(struct sbi_scratch *scratch, u32 suspend_type,
 
 	/* Sanity check on domain assigned to current HART */
 	if (!dom)
-		return SBI_EINVAL;
+		return SBI_EFAIL;
 
 	/* Sanity check on suspend type */
 	if (SBI_HSM_SUSPEND_RET_DEFAULT < suspend_type &&
@@ -415,7 +415,7 @@ int sbi_hsm_hart_suspend(struct sbi_scratch *scratch, u32 suspend_type,
 	/* Additional sanity check for non-retentive suspend */
 	if (suspend_type & SBI_HSM_SUSP_NON_RET_BIT) {
 		if (rmode != PRV_S && rmode != PRV_U)
-			return SBI_EINVAL;
+			return SBI_EFAIL;
 		if (dom && !sbi_domain_check_addr(dom, raddr, rmode,
 						  SBI_DOMAIN_EXECUTE))
 			return SBI_EINVALID_ADDR;
@@ -429,7 +429,7 @@ int sbi_hsm_hart_suspend(struct sbi_scratch *scratch, u32 suspend_type,
 	/* Directly move from STARTED to SUSPENDED state */
 	if (!__sbi_hsm_hart_change_state(hdata, SBI_HSM_STATE_STARTED,
 					 SBI_HSM_STATE_SUSPENDED))
-		return SBI_EDENIED;
+		return SBI_EFAIL;
 
 	/* Save the suspend type */
 	hdata->suspend_type = suspend_type;