Yang Yingliang
2021-Sep-11 07:50 UTC
[Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: fix file release memory leak
When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.
Fixes: 12885ecbfe62 ("drm/nouveau/kms/nvd9-: Add CRC support")
Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang at huawei.com>
---
drivers/gpu/drm/nouveau/dispnv50/crc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c
b/drivers/gpu/drm/nouveau/dispnv50/crc.c
index b8c31b697797..66f32d965c72 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/crc.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c
@@ -704,6 +704,7 @@ static const struct file_operations
nv50_crc_flip_threshold_fops = {
.open = nv50_crc_debugfs_flip_threshold_open,
.read = seq_read,
.write = nv50_crc_debugfs_flip_threshold_set,
+ .release = single_release,
};
int nv50_head_crc_late_register(struct nv50_head *head)
--
2.25.1
Yang Yingliang
2021-Sep-11 07:50 UTC
[Nouveau] [PATCH 2/2] drm/nouveau/debugfs: fix file release memory leak
When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.
Fixes: 6e9fc177399f ("drm/nouveau/debugfs: add copy of sysfs pstate
interface ported to debugfs")
Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang at huawei.com>
---
drivers/gpu/drm/nouveau/nouveau_debugfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index c2bc05eb2e54..1cbe01048b93 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -207,6 +207,7 @@ static const struct file_operations nouveau_pstate_fops = {
.open = nouveau_debugfs_pstate_open,
.read = seq_read,
.write = nouveau_debugfs_pstate_set,
+ .release = single_release,
};
static struct drm_info_list nouveau_debugfs_list[] = {
--
2.25.1
Karol Herbst
2021-Sep-28 11:33 UTC
[Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: fix file release memory leak
Reviewed-by: Karol Herbst <kherbst at redhat.com> On Sat, Sep 11, 2021 at 9:45 AM Yang Yingliang <yangyingliang at huawei.com> wrote:> > When using single_open() for opening, single_release() should be > called, otherwise the 'op' allocated in single_open() will be leaked. > > Fixes: 12885ecbfe62 ("drm/nouveau/kms/nvd9-: Add CRC support") > Reported-by: Hulk Robot <hulkci at huawei.com> > Signed-off-by: Yang Yingliang <yangyingliang at huawei.com> > --- > drivers/gpu/drm/nouveau/dispnv50/crc.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c b/drivers/gpu/drm/nouveau/dispnv50/crc.c > index b8c31b697797..66f32d965c72 100644 > --- a/drivers/gpu/drm/nouveau/dispnv50/crc.c > +++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c > @@ -704,6 +704,7 @@ static const struct file_operations nv50_crc_flip_threshold_fops = { > .open = nv50_crc_debugfs_flip_threshold_open, > .read = seq_read, > .write = nv50_crc_debugfs_flip_threshold_set, > + .release = single_release, > }; > > int nv50_head_crc_late_register(struct nv50_head *head) > -- > 2.25.1 >