[PATCH] media: drxk: add a missed check of the return value of write16

[Kangjie Lu]

write16() could fail. The fix inserts a check for its return value
in case it fails.

Signed-off-by: Kangjie Lu <k...@umn.edu>
---
 drivers/media/dvb-frontends/drxk_hard.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/drxk_hard.c 
b/drivers/media/dvb-frontends/drxk_hard.c
index 84ac3f73f8fe..b7579ffae690 100644
--- a/drivers/media/dvb-frontends/drxk_hard.c
+++ b/drivers/media/dvb-frontends/drxk_hard.c
@@ -6610,7 +6610,9 @@ static int drxk_get_stats(struct dvb_frontend *fe)
        if (status < 0)
                goto error;
        pkt_error_count = reg16;
-       write16(state, SCU_RAM_FEC_ACCUM_PKT_FAILURES__A, 0);
+       status = write16(state, SCU_RAM_FEC_ACCUM_PKT_FAILURES__A, 0);
+       if (status < 0)
+               goto error;
 
        post_bit_err_count *= post_bit_error_scale;
 
-- 
2.17.2 (Apple Git-113)