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amt: Fix up a small memory leak and remove some goto's

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This commit is contained in:
Richard Hughes 2017-06-19 20:18:36 +01:00
parent 35aebc838f
commit 166d42cada
1 changed files with 33 additions and 56 deletions
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89
plugins/amt/fu-plugin-amt.c
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@ -136,13 +136,12 @@ mei_send_msg (mei_context *ctx, const guchar *buffer,
g_debug ("call write length = %zd", len);
written = write (ctx->fd, buffer, len);
if (written < 0) {
rc = -errno;
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_WRITE,
"write failed with status %zd %s",
written, strerror(errno));
goto out;
written, strerror(errno));
return -errno;
}
FD_ZERO(&set);
@ -150,23 +149,23 @@ mei_send_msg (mei_context *ctx, const guchar *buffer,
rc = select (ctx->fd + 1 , &set, NULL, NULL, &tv);
if (rc > 0 && FD_ISSET(ctx->fd, &set)) {
g_debug ("write success");
} else if (rc == 0) {
return written;
}
/* timed out */
if (rc == 0) {
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_WRITE,
"write failed on timeout with status");
goto out;
} else { /* rc < 0 */
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_WRITE,
"write failed on select with status %zd", rc);
goto out;
return 0;
}
rc = written;
out:
/* rc < 0 */
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_WRITE,
"write failed on select with status %zd", rc);
return rc;
}
@ -276,40 +275,23 @@ struct amt_host_if {
static guint32
amt_verify_code_versions (const struct amt_host_if_resp_header *resp)
{
guint32 status = AMT_STATUS_SUCCESS;
struct amt_code_versions *code_ver;
gsize code_ver_len;
guint32 ver_type_cnt;
guint32 len;
guint32 i;
code_ver = (struct amt_code_versions *)resp->data;
/* length - sizeof(status) */
code_ver_len = resp->header.length - sizeof(guint32);
ver_type_cnt = code_ver_len -
sizeof(code_ver->bios) -
sizeof(code_ver->count);
if (code_ver->count != ver_type_cnt / sizeof(struct amt_version_type)) {
status = AMT_STATUS_INTERNAL_ERROR;
goto out;
}
for (i = 0; i < code_ver->count; i++) {
len = code_ver->versions[i].description.length;
if (len > AMT_UNICODE_STRING_LEN) {
status = AMT_STATUS_INTERNAL_ERROR;
goto out;
}
struct amt_code_versions *code_ver = (struct amt_code_versions *)resp->data;
gsize code_ver_len = resp->header.length - sizeof(guint32);
guint32 ver_type_cnt = code_ver_len -
sizeof(code_ver->bios) -
sizeof(code_ver->count);
if (code_ver->count != ver_type_cnt / sizeof(struct amt_version_type))
return AMT_STATUS_INTERNAL_ERROR;
for (guint32 i = 0; i < code_ver->count; i++) {
guint32 len = code_ver->versions[i].description.length;
if (len > AMT_UNICODE_STRING_LEN)
return AMT_STATUS_INTERNAL_ERROR;
len = code_ver->versions[i].version.length;
if (code_ver->versions[i].version.string[len] != '\0' ||
len != strlen(code_ver->versions[i].version.string)) {
status = AMT_STATUS_INTERNAL_ERROR;
goto out;
}
len != strlen(code_ver->versions[i].version.string))
return AMT_STATUS_INTERNAL_ERROR;
}
out:
return status;
return AMT_STATUS_SUCCESS;
}
static guint32
@ -350,11 +332,8 @@ amt_host_if_call (mei_context *mei_cl,
struct amt_host_if_resp_header *msg_hdr;
in_buf_sz = mei_cl->buf_size;
*read_buf = (guint8 *) g_malloc (in_buf_sz);
if (*read_buf == NULL)
return AMT_STATUS_SDK_RESOURCES;
memset(*read_buf, 0, in_buf_sz);
msg_hdr = (struct amt_host_if_resp_header *)*read_buf;
*read_buf = (guint8 *) g_malloc0 (in_buf_sz);
msg_hdr = (struct amt_host_if_resp_header *) *read_buf;
written = mei_send_msg (mei_cl, command, command_sz, send_timeout, error);
if (written != command_sz)
@ -368,8 +347,7 @@ amt_host_if_call (mei_context *mei_cl,
if (status != AMT_STATUS_SUCCESS)
return status;
status = amt_verify_response_header(rcmd,
&msg_hdr->header, out_buf_sz);
status = amt_verify_response_header(rcmd, &msg_hdr->header, out_buf_sz);
if (status != AMT_STATUS_SUCCESS)
return status;
@ -382,7 +360,7 @@ amt_host_if_call (mei_context *mei_cl,
static guint32
amt_get_provisioning_state (mei_context *mei_cl, guint8 *state, GError **error)
{
struct amt_host_if_resp_header *response = NULL;
g_autofree struct amt_host_if_resp_header *response = NULL;
guint32 status;
status = amt_host_if_call (mei_cl,
@ -412,11 +390,12 @@ fu_plugin_amt_create_device (GError **error)
guint32 status;
guint8 state;
struct amt_code_versions ver;
struct amt_host_if_resp_header *response = NULL;
uuid_t uu;
g_autofree struct amt_host_if_resp_header *response = NULL;
g_autoptr(FuDevice) dev = NULL;
g_autoptr(mei_context) ctx = g_new0 (mei_context, 1);
/* create context */
if (!mei_context_new (ctx, &MEI_IAMTHIF, 0, error))
return NULL;
@ -446,8 +425,6 @@ fu_plugin_amt_create_device (GError **error)
return NULL;
}
memcpy (&ver, response->data, sizeof(struct amt_code_versions));
if (response != NULL)
g_free (response);
dev = fu_device_new ();
fu_device_set_id (dev, "/dev/mei");