From: Sami Tolvanen <samitolvanen@google.com>
To: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: Kees Cook <keescook@chromium.org>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Sami Tolvanen <samitolvanen@google.com>
Subject: [PATCH] media: media-device: fix ioctl function types
Date: Fri, 27 Apr 2018 12:54:30 -0700 [thread overview]
Message-ID: <20180427195430.237342-1-samitolvanen@google.com> (raw)
This change fixes function types for media device ioctls to avoid
indirect call mismatches with Control-Flow Integrity checking.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
---
drivers/media/media-device.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 35e81f7c0d2f..bc5c024906e6 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -54,9 +54,10 @@ static int media_device_close(struct file *filp)
return 0;
}
-static int media_device_get_info(struct media_device *dev,
- struct media_device_info *info)
+static long media_device_get_info(struct media_device *dev, void *arg)
{
+ struct media_device_info *info = (struct media_device_info *)arg;
+
memset(info, 0, sizeof(*info));
if (dev->driver_name[0])
@@ -93,9 +94,9 @@ static struct media_entity *find_entity(struct media_device *mdev, u32 id)
return NULL;
}
-static long media_device_enum_entities(struct media_device *mdev,
- struct media_entity_desc *entd)
+static long media_device_enum_entities(struct media_device *mdev, void *arg)
{
+ struct media_entity_desc *entd = (struct media_entity_desc *)arg;
struct media_entity *ent;
ent = find_entity(mdev, entd->id);
@@ -146,9 +147,9 @@ static void media_device_kpad_to_upad(const struct media_pad *kpad,
upad->flags = kpad->flags;
}
-static long media_device_enum_links(struct media_device *mdev,
- struct media_links_enum *links)
+static long media_device_enum_links(struct media_device *mdev, void *arg)
{
+ struct media_links_enum *links = (struct media_links_enum *)arg;
struct media_entity *entity;
entity = find_entity(mdev, links->entity);
@@ -195,9 +196,9 @@ static long media_device_enum_links(struct media_device *mdev,
return 0;
}
-static long media_device_setup_link(struct media_device *mdev,
- struct media_link_desc *linkd)
+static long media_device_setup_link(struct media_device *mdev, void *arg)
{
+ struct media_link_desc *linkd = (struct media_link_desc *)arg;
struct media_link *link = NULL;
struct media_entity *source;
struct media_entity *sink;
@@ -225,9 +226,9 @@ static long media_device_setup_link(struct media_device *mdev,
return __media_entity_setup_link(link, linkd->flags);
}
-static long media_device_get_topology(struct media_device *mdev,
- struct media_v2_topology *topo)
+static long media_device_get_topology(struct media_device *mdev, void *arg)
{
+ struct media_v2_topology *topo = (struct media_v2_topology *)arg;
struct media_entity *entity;
struct media_interface *intf;
struct media_pad *pad;
--
2.17.0.441.gb46fe60e1d-goog
next reply other threads:[~2018-04-27 19:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 19:54 Sami Tolvanen [this message]
2018-04-30 22:41 ` [PATCH] media: media-device: fix ioctl function types Kees Cook
2018-05-07 10:45 ` Sakari Ailus
2018-05-07 18:09 ` [PATCH v2] " Sami Tolvanen
2018-05-07 21:45 ` Sakari Ailus
2018-05-08 8:08 ` Hans Verkuil
2018-05-08 9:16 ` Sakari Ailus
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