V4L/DVB (3129): correct FE_READ_UNCORRECTED_BLOCKS

- Make FE_READ_UNCORRECTED_BLOCKS reset the count after each call,
thus returning a momentary value like all other demods do,
instead of an absolute, ever increasing count.

Signed-off-by: Stephen Williams <stephen.williams@gmail.com>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c
index 1d69bf031fb9..e2598bbc2bb5 100644
--- a/drivers/media/dvb/cinergyT2/cinergyT2.c
+++ b/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -564,10 +564,15 @@ static int cinergyt2_ioctl (struct inode *inode, struct file *file,
                                 (__u16 __user *) arg);
 
         case FE_READ_UNCORRECTED_BLOCKS:
-                /* UNC are already converted to host byte order... */
-                return put_user(stat->uncorrected_block_count,
-                                (__u32 __user *) arg);
+        {
+                uint32_t unc_count;
 
+                unc_count = stat->uncorrected_block_count;
+                stat->uncorrected_block_count = 0;
+
+                /* UNC are already converted to host byte order... */
+                return put_user(unc_count,(__u32 __user *) arg);
+        }
         case FE_SET_FRONTEND:
         {
                 struct dvbt_set_parameters_msg *param = &cinergyt2->param;