From: Julia Lawall <ju...@diku.dk>

In each case, error codes are stored in rc, but the return value is always
0.  Return rc instead.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression x;
constant C;
@@

if (...) { ...
  x = -C
  ... when != x
(
  return <+...x...+>;
|
  return NULL;
|
  return;
|
* return ...;
)
}
// </smpl>

Signed-off-by: Julia Lawall <ju...@diku.dk>

---
The changes change the semantics and are not tested.  In the second case,
the function is used in only one place and the return value is igored.

 drivers/media/dvb/frontends/drx397xD.c |    2 +-
 drivers/media/video/s2255drv.c         |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb/frontends/drx397xD.c 
b/drivers/media/dvb/frontends/drx397xD.c
index f74cca6..a05007c 100644
--- a/drivers/media/dvb/frontends/drx397xD.c
+++ b/drivers/media/dvb/frontends/drx397xD.c
@@ -232,7 +232,7 @@ static int write_fw(struct drx397xD_state *s, enum blob_ix 
ix)
 exit_rc:
        read_unlock(&fw[s->chip_rev].lock);
 
-       return 0;
+       return rc;
 }
 
 /* Function is not endian safe, use the RD16 wrapper below */
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 8ec7c9a..8f74341 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -600,7 +600,7 @@ static int s2255_got_frame(struct s2255_channel *channel, 
int jpgsize)
        dprintk(2, "%s: [buf/i] [%p/%d]\n", __func__, buf, buf->vb.i);
 unlock:
        spin_unlock_irqrestore(&dev->slock, flags);
-       return 0;
+       return rc;
 }
 
 static const struct s2255_fmt *format_by_fourcc(int fourcc)
--
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