[RFC Patch v1 12/13] nouveau: fix memory leak in ACPI _DSM related code

[Jiang Liu]

Fix memory leak in function nouveau_optimus_dsm() and nouveau_dsm().

Signed-off-by: Jiang Liu <jiang.liu at linux.intel.com>
---
 drivers/gpu/drm/nouveau/nouveau_acpi.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c 
b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 95c7404..03d4911 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -110,6 +110,7 @@ static int nouveau_optimus_dsm(acpi_handle handle, int 
func, int arg, uint32_t *

        if (obj->type == ACPI_TYPE_INTEGER)
                if (obj->integer.value == 0x80000002) {
+                       kfree(output.pointer);
                        return -ENODEV;
                }

@@ -156,8 +157,10 @@ static int nouveau_dsm(acpi_handle handle, int func, int 
arg, uint32_t *result)
        obj = (union acpi_object *)output.pointer;

        if (obj->type == ACPI_TYPE_INTEGER)
-               if (obj->integer.value == 0x80000002)
+               if (obj->integer.value == 0x80000002) {
+                       kfree(output.pointer);
                        return -ENODEV;
+               }

        if (obj->type == ACPI_TYPE_BUFFER) {
                if (obj->buffer.length == 4 && result) {
-- 
1.7.10.4