[PATCH v2] bootstd: Fix a memory leak in the efi manager bootflow

[Ilias Apalodimas]

efi_get_var() allocates memory which has to be freed after the value of
the variable is consumed. Free the memory properly

Fixes: f2bfa0cb1794 ("bootstd: Make efi_mgr bootmeth work for non-sandbox setups")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
---
Apologies for the quick resend but the previous patches wasn't compiling due to
the missing #include <malloc.h>

Changes since v1
- Add #include <malloc.h> since it's needed for free()

 boot/bootmeth_efi_mgr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/boot/bootmeth_efi_mgr.c b/boot/bootmeth_efi_mgr.c
index e6c42d41fb80..6428c096d7f8 100644
--- a/boot/bootmeth_efi_mgr.c
+++ b/boot/bootmeth_efi_mgr.c
@@ -16,6 +16,7 @@
 #include <dm.h>
 #include <efi_loader.h>
 #include <efi_variable.h>
+#include <malloc.h>

 /**
  * struct efi_mgr_priv - private info for the efi-mgr driver
@@ -65,6 +66,7 @@ static int efi_mgr_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 	bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid,
 				&size);
 	if (bootorder) {
+		free(bootorder);
 		bflow->state = BOOTFLOWST_READY;
 		return 0;
 	}
--
2.40.1