[U-Boot] [PATCH] dfu: avoid memory leak

[Peng Fan]

When dfu_fill_entity fail, need to free dfu to avoid memory leak.

Reported by Coverity:
"
Resource leak (RESOURCE_LEAK)
leaked_storage: Variable dfu going out of scope leaks the storage
it points to.
"

Signed-off-by: Peng Fan <van.freenix at gmail.com>
Cc: "Łukasz Majewski" <l.majewski at samsung.com>
Cc: Marek Vasut <marex at denx.de>
---
 drivers/dfu/dfu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 8f5915e..20dfcbb 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -468,8 +468,10 @@ int dfu_config_entities(char *env, char *interface, char *devstr)
 		s = strsep(&env, ";");
 		ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface,
 				      devstr);
-		if (ret)
+		if (ret) {
+			free(dfu);
 			return -1;
+		}
 
 		list_add_tail(&dfu[i].list, &dfu_list);
 		alt_num_cnt++;
-- 
2.6.2