[PATCH 5/5] discover: pxe: Avoid dereferencing null pointer

[Joel Stanley]

When result is null, we may end up in the error handling path where we
try to dereference null to cal cleanup_local. This adds a check for
result.

Found with scan-build.

Signed-off-by: Joel Stanley <joel at jms.id.au>
---
 discover/pxe-parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/discover/pxe-parser.c b/discover/pxe-parser.c
index 5c80b1399973..d2ebaab0e8a0 100644
--- a/discover/pxe-parser.c
+++ b/discover/pxe-parser.c
@@ -324,7 +324,7 @@ static void pxe_conf_parse_cb(struct load_url_result *result, void *data)
 
 	talloc_free(buf);
 out_clean:
-	if (result->cleanup_local)
+	if (result && result->cleanup_local)
 		unlink(result->local);
 	talloc_free(conf);
 }
-- 
2.15.1