hw/tpm: rename Error ** parameter to more common errp

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20191205174635.18758-17-vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

hw/tpm/tpm_emulator.c

@@ -155,7 +155,7 @@ static int tpm_emulator_unix_tx_bufs(TPMEmulator *tpm_emu,
                                      const uint8_t *in, uint32_t in_len,
                                      uint8_t *out, uint32_t out_len,
                                      bool *selftest_done,
-                                     Error **err)
+                                     Error **errp)
 {
     ssize_t ret;
     bool is_selftest = false;
@@ -165,20 +165,20 @@ static int tpm_emulator_unix_tx_bufs(TPMEmulator *tpm_emu,
         is_selftest = tpm_util_is_selftest(in, in_len);
     }
 
-    ret = qio_channel_write_all(tpm_emu->data_ioc, (char *)in, in_len, err);
+    ret = qio_channel_write_all(tpm_emu->data_ioc, (char *)in, in_len, errp);
     if (ret != 0) {
         return -1;
     }
 
     ret = qio_channel_read_all(tpm_emu->data_ioc, (char *)out,
-              sizeof(struct tpm_resp_hdr), err);
+              sizeof(struct tpm_resp_hdr), errp);
     if (ret != 0) {
         return -1;
     }
 
     ret = qio_channel_read_all(tpm_emu->data_ioc,
               (char *)out + sizeof(struct tpm_resp_hdr),
-              tpm_cmd_get_size(out) - sizeof(struct tpm_resp_hdr), err);
+              tpm_cmd_get_size(out) - sizeof(struct tpm_resp_hdr), errp);
     if (ret != 0) {
         return -1;
     }