[PATCH 4/9] eal: release devargs on device removal

[Gaetan Rivet <gaetan.rivet@6wind.com>]

Use the new rte_eal_devargs_rmv() API to free allocated resources
during device removal or when encountering errors when adding devices.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
 lib/librte_eal/common/eal_common_dev.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index 708c8e9..143c231 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -177,7 +177,7 @@ rte_eal_hotplug_add(const char *busname, const char *devname,
 	ret = bus->scan();
 	if (ret) {
 		rte_errno = -ret;
-		goto err_name;
+		goto err_devarg;
 	}
 
 	dev = bus->find_device(NULL, cmp_detached_dev_name, devname);
@@ -185,7 +185,7 @@ rte_eal_hotplug_add(const char *busname, const char *devname,
 		RTE_LOG(ERR, EAL, "Cannot find unplugged device (%s)\n",
 			devname);
 		rte_errno = EINVAL;
-		goto err_name;
+		goto err_devarg;
 	}
 
 	ret = bus->plug(dev, devargs);
@@ -193,11 +193,13 @@ rte_eal_hotplug_add(const char *busname, const char *devname,
 		RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n",
 			dev->name);
 		rte_errno = -ret;
-		goto err_name;
+		goto err_devarg;
 	}
 	free(name);
 	return dev;
 
+err_devarg:
+	rte_eal_devargs_rmv(busname, devname);
 err_name:
 	free(name);
 	return NULL;
@@ -230,6 +232,8 @@ int rte_eal_hotplug_remove(const char *busname, const char *devname)
 		return -EINVAL;
 	}
 
+	rte_eal_devargs_rmv(busname, devname);
+	dev->devargs = NULL;
 	ret = bus->unplug(dev);
 	if (ret) {
 		RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n",
-- 
2.1.4