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thunderbolt: Handle -EAGAIN from nvm_version elsewhere as well

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There are other places in the plugin where we read nvm_version and it
can return -EAGAIN as well. To make sure it works consistenly accross
the plugin factor reading nvm_version to a helper function and use instead.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2018-08-06 14:30:24 +03:00 committed by Richard Hughes
parent e20a5cb839
commit b9ac0aa179
1 changed files with 22 additions and 11 deletions
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33
plugins/thunderbolt/fu-plugin-thunderbolt.c
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@ -174,6 +174,24 @@ fu_plugin_thunderbolt_find_nvmem (GUdevDevice *udevice,
return NULL;
}
static const gchar *
fu_plugin_thunderbolt_udev_get_version (GUdevDevice *udevice)
{
const gchar *version = NULL;
for (guint i = 0; i < 50; i++) {
version = g_udev_device_get_sysfs_attr (udevice, "nvm_version");
if (version != NULL)
break;
g_debug ("Attempt %u: Failed to read NVM version", i);
if (errno != EAGAIN)
break;
g_usleep (TBT_NVM_RETRY_TIMEOUT * 1000);
}
return version;
}
static gboolean
fu_plugin_thunderbolt_is_native (GUdevDevice *udevice, gboolean *is_native, GError **error)
{
@ -285,15 +303,8 @@ fu_plugin_thunderbolt_add (FuPlugin *plugin, GUdevDevice *device)
dev = fu_device_new ();
is_host = fu_plugin_thunderbolt_is_host (device);
for (guint i = 0; i < 50; i++) {
version_raw = g_udev_device_get_sysfs_attr (device, "nvm_version");
if (version_raw != NULL)
break;
g_debug ("Attempt %u: Failed to read NVM version", i);
if (errno != EAGAIN)
break;
g_usleep (TBT_NVM_RETRY_TIMEOUT * 1000);
}
version_raw = fu_plugin_thunderbolt_udev_get_version (device);
/* test for safe mode */
version = fu_plugin_thunderbolt_parse_version (version_raw);
if (is_host && version == NULL) {
@ -413,7 +424,7 @@ fu_plugin_thunderbolt_change (FuPlugin *plugin, GUdevDevice *device)
return;
}
version = g_udev_device_get_sysfs_attr (device, "nvm_version");
version = fu_plugin_thunderbolt_udev_get_version (device);
fu_device_set_version (dev, version);
}
@ -626,7 +637,7 @@ on_wait_for_device_added (FuPlugin *plugin,
/* make sure the version is correct, might have changed
* after update. */
version = g_udev_device_get_sysfs_attr (device, "nvm_version");
version = fu_plugin_thunderbolt_udev_get_version (device);
fu_device_set_version (dev, version);
id = fu_plugin_thunderbolt_gen_id (device);