tpm: fix wrong return value in tpm_pcr_extend

For the algorithm that does not match the bank, a positive
value EINVAL is returned here. I think this is a typo error.
It is necessary to return an error value.

Cc: [email protected] # 5.4.x
Fixes: 9f75c82 ("KEYS: trusted: correctly initialize digests and fix locking issue")
Signed-off-by: Tianjia Zhang <[email protected]>
Reviewed-by: Roberto Sassu <[email protected]>
Reviewed-by: Jerry Snitselaar <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Jarkko Sakkinen <[email protected]>

Author: uudiin

drivers/char/tpm/tpm-interface.c

@@ -323,7 +323,7 @@ int tpm_pcr_extend(struct tpm_chip *chip, u32 pcr_idx,
 
 	for (i = 0; i < chip->nr_allocated_banks; i++) {
 		if (digests[i].alg_id != chip->allocated_banks[i].alg_id) {
-			rc = EINVAL;
+			rc = -EINVAL;
 			goto out;
 		}
 	}