V4L/DVB (10138): v4l2-ioctl: change to long return type to match unlocked_ioctl.

Since internal to v4l2 the ioctl prototype is the same regardless of it
being called through .ioctl or .unlocked_ioctl, we need to convert it all
to the long return type of unlocked_ioctl.

Thanks to Jean-Francois Moine for posting an initial patch for this and
thus bringing it to our attention.

Cc: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index b4f391431853..28861e4910f3 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -222,9 +222,9 @@ static int get_microcode32(struct video_code *kp, struct video_code32 __user *up
 
 #endif
 
-static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-        int ret = -ENOIOCTLCMD;
+        long ret = -ENOIOCTLCMD;
 
         if (file->f_op->unlocked_ioctl)
                 ret = file->f_op->unlocked_ioctl(file, cmd, arg);
@@ -705,7 +705,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
 #define VIDIOC_G_OUTPUT32       _IOR ('V', 46, s32)
 #define VIDIOC_S_OUTPUT32       _IOWR('V', 47, s32)
 
-static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
         union {
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
@@ -726,7 +726,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg
         } karg;
         void __user *up = compat_ptr(arg);
         int compatible_arg = 1;
-        int err = 0;
+        long err = 0;
 
         /* First, convert the command. */
         switch (cmd) {
@@ -939,7 +939,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 
 long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
 {
-        int ret = -ENOIOCTLCMD;
+        long ret = -ENOIOCTLCMD;
 
         if (!file->f_op->ioctl && !file->f_op->unlocked_ioctl)
                 return ret;