[dpdk-dev] [PATCH] eal: fix leak in hotplug add on parse error

[Gaetan Rivet]

If rte_eal_devargs_parse fails, the rte_devargs has not yet been inserted
in the global list. When jumping to err_devarg, the removal fails and it
is not properly freed.

Free the allocated rte_devargs if its removal failed.

Coverity issue: 158658
Fixes: 7e8b26650146 ("eal: fix hotplug add / remove")

Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com>
---
 lib/librte_eal/common/eal_common_dev.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/eal_common_dev.c 
b/lib/librte_eal/common/eal_common_dev.c
index d19232d..fc8a4d2 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -204,7 +204,10 @@ int rte_eal_hotplug_add(const char *busname, const char 
*devname,
        return 0;
 
 err_devarg:
-       rte_eal_devargs_remove(busname, devname);
+       if (rte_eal_devargs_remove(busname, devname)) {
+               free(da->args);
+               free(da);
+       }
 err_name:
        free(name);
        return ret;
-- 
2.1.4