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authorMauro Carvalho Chehab <mchehab@infradead.org>2006-07-21 18:53:23 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-07-29 17:22:27 -0300
commiteb4eeccc18246c852fffc771efc3c07a547aeb97 (patch)
treeb2858509abb152306b6617cce44ec087154fbb04
parent95faba22d8b81f0cd85b995232b7d05c45a26f3e (diff)
V4L/DVB (4341): VIDIOCSMICROCODE were missing on compat_ioctl32
video_code size is 24 on i386 and 32 on x86_64, so a proper handling is needed on compat_ioctl32 to fix it. This code should be tested, since just *a few* boards use this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/video/compat_ioctl32.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c
index 353d02b67c3..9dddff42ec1 100644
--- a/drivers/media/video/compat_ioctl32.c
+++ b/drivers/media/video/compat_ioctl32.c
@@ -490,6 +490,23 @@ static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user
return 0;
}
+struct video_code32
+{
+ char loadwhat[16]; /* name or tag of file being passed */
+ compat_int_t datasize;
+ unsigned char *data;
+};
+
+static inline int microcode32(struct video_code *kp, struct video_code32 __user *up)
+{
+ if(!access_ok(VERIFY_READ, up, sizeof(struct video_code32)) ||
+ copy_from_user(kp->loadwhat, up->loadwhat, sizeof (up->loadwhat)) ||
+ get_user(kp->datasize, &up->datasize) ||
+ copy_from_user(kp->data, up->data, up->datasize))
+ return -EFAULT;
+ return 0;
+}
+
#define VIDIOCGTUNER32 _IOWR('v',4, struct video_tuner32)
#define VIDIOCSTUNER32 _IOW('v',5, struct video_tuner32)
#define VIDIOCGWIN32 _IOR('v',9, struct video_window32)
@@ -498,6 +515,7 @@ static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user
#define VIDIOCSFBUF32 _IOW('v',12, struct video_buffer32)
#define VIDIOCGFREQ32 _IOR('v',14, u32)
#define VIDIOCSFREQ32 _IOW('v',15, u32)
+#define VIDIOCSMICROCODE32 _IOW('v',27, struct video_code32)
/* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */
#define VIDIOC_ENUMINPUT32 VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4)
@@ -590,6 +608,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg
struct video_tuner vt;
struct video_buffer vb;
struct video_window vw;
+ struct video_code vc;
struct v4l2_format v2f;
struct v4l2_buffer v2b;
struct v4l2_framebuffer v2fb;
@@ -628,6 +647,7 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg
case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
+ case VIDIOCSMICROCODE32: cmd = VIDIOCSMICROCODE; break;
};
switch(cmd) {
@@ -703,6 +723,10 @@ static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg
case VIDIOC_G_FBUF:
case VIDIOC_G_INPUT:
compatible_arg = 0;
+ case VIDIOCSMICROCODE:
+ err = microcode32(&karg.vc, up);
+ compatible_arg = 0;
+ break;
};
if(err)