V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings

Fix sparse warnings. None are serious, but cutting down on these helps find
future serious sparse warnings/errors.

Redid the av7710.c patch based on a suggestion by Oliver Endriss.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index 97853384c943..2989a65f6917 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -143,10 +143,11 @@ static int em2800_i2c_check_for_device(struct em28xx *dev, unsigned char addr)
         }
         for (write_timeout = EM2800_I2C_WRITE_TIMEOUT; write_timeout > 0;
              write_timeout -= 5) {
-                unsigned msg = dev->em28xx_read_reg(dev, 0x5);
-                if (msg == 0x94)
+                unsigned reg = dev->em28xx_read_reg(dev, 0x5);
+
+                if (reg == 0x94)
                         return -ENODEV;
-                else if (msg == 0x84)
+                else if (reg == 0x84)
                         return 0;
                 msleep(5);
         }