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core: don't crash when a wired device doesn't have a driver (rh #492246)

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Virtual interfaces like Cisco VPN and VMWare net driver don't have 'driver'
links in sysfs (since they don't really have subsystems).
This commit is contained in:
Dan Williams 2009-03-26 17:05:41 -04:00
parent b724b1820d
commit b8fc83a7cf
1 changed files with 15 additions and 7 deletions
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22
src/nm-hal-manager.c
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@ -129,9 +129,13 @@ nm_get_device_driver_name (LibHalContext *ctx, const char *origdev_udi)
char *driver_name = NULL;
if (origdev_udi && libhal_device_property_exists (ctx, origdev_udi, "info.linux.driver", NULL)) {
char *drv = libhal_device_get_property_string (ctx, origdev_udi, "info.linux.driver", NULL);
driver_name = g_strdup (drv);
libhal_free_string (drv);
char *drv;
drv = libhal_device_get_property_string (ctx, origdev_udi, "info.linux.driver", NULL);
if (drv) {
driver_name = g_strdup (drv);
libhal_free_string (drv);
}
}
return driver_name;
}
@ -204,7 +208,7 @@ wired_device_creator (NMHalManager *self,
/* Special handling of Ericsson F3507g 'mbm' devices; ignore the
* cdc-ether device that it provides since we don't use it yet.
*/
if (!strcmp (driver, "cdc_ether")) {
if (driver && !strcmp (driver, "cdc_ether")) {
parent = is_mbm (priv->hal_ctx, udi);
mbm = !!parent;
libhal_free_string (parent);
@ -823,9 +827,13 @@ nm_get_modem_device_driver_name (LibHalContext *ctx, const char *udi)
origdev_udi = libhal_device_get_property_string (ctx, udi, "serial.physical_device", NULL);
if (origdev_udi && libhal_device_property_exists (ctx, origdev_udi, "info.linux.driver", NULL)) {
char *drv = libhal_device_get_property_string (ctx, origdev_udi, "info.linux.driver", NULL);
driver_name = g_strdup (drv);
libhal_free_string (drv);
char *drv;
drv = libhal_device_get_property_string (ctx, origdev_udi, "info.linux.driver", NULL);
if (drv) {
driver_name = g_strdup (drv);
libhal_free_string (drv);
}
}
libhal_free_string (origdev_udi);
return driver_name;