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authorJavier Martinez Canillas <javier@osg.samsung.com>2016-04-14 22:00:07 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2016-05-09 14:44:16 -0300
commitcacdd6a4a8d5115da2767769b44bd435455f6424 (patch)
tree92d660454b4647cd6e2f5ff5e6d430f2aae33e62
parent11a2a949d05e9d2d9823f0c45fa476743d9e462b (diff)
[media] tvp5150: return I2C write operation failure to callers
The tvp5150_write() function calls i2c_smbus_write_byte_data() that can fail but does not propagate the error to the caller. Instead it just prints a debug, so callers can't know if the operation failed. So change the function to return the error code to the caller so it knows that the write failed and also print an error instead of just printing a debug information. While being there remove the inline keyword from tvp5150_write() to make it consistent with tvp5150_read() and also because it's called in a lot of places, so making inline is in fact counter productive since it makes the kernel image size to be much bigger (~16 KiB). Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
-rw-r--r--drivers/media/i2c/tvp5150.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index ff18444e19e4..283836514e6a 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -83,7 +83,7 @@ static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
return rc;
}
-static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
+static int tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
unsigned char value)
{
struct i2c_client *c = v4l2_get_subdevdata(sd);
@@ -92,7 +92,9 @@ static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", addr, value);
rc = i2c_smbus_write_byte_data(c, addr, value);
if (rc < 0)
- v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d\n", rc);
+ v4l2_err(sd, "i2c i/o error: rc == %d\n", rc);
+
+ return rc;
}
static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,

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