Hi Hugues, On Tue, Feb 06, 2018 at 02:24:09PM +0100, Hugues Fruchet wrote: > Fix module_param(virtual_channel) permissions. > This problem was detected by checkpatch: > $ scripts/checkpatch.pl -f drivers/media/i2c/ov5640.c > ERROR: Use 4 digit octal (0777) not decimal permissions > #131: FILE: drivers/media/i2c/ov5640.c:131: > +module_param(virtual_channel, int, 0); > > Also add an error trace in case of virtual_channel not in > the valid range of values. > > Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxx> Reviewed-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> Thanks j > --- > version 2: > - Fix code as per Jacopo Mondi suggestions: > - int to uint > - no need to set global to 0 > - shorten error trace > See https://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg125474.html > drivers/media/i2c/ov5640.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c > index 696a28b..3e7b43c 100644 > --- a/drivers/media/i2c/ov5640.c > +++ b/drivers/media/i2c/ov5640.c > @@ -128,7 +128,7 @@ struct ov5640_pixfmt { > * to set the MIPI CSI-2 virtual channel. > */ > static unsigned int virtual_channel; > -module_param(virtual_channel, int, 0); > +module_param(virtual_channel, uint, 0444); > MODULE_PARM_DESC(virtual_channel, > "MIPI CSI-2 virtual channel (0..3), default 0"); > > @@ -1358,11 +1358,16 @@ static int ov5640_binning_on(struct ov5640_dev *sensor) > > static int ov5640_set_virtual_channel(struct ov5640_dev *sensor) > { > + struct i2c_client *client = sensor->i2c_client; > u8 temp, channel = virtual_channel; > int ret; > > - if (channel > 3) > + if (channel > 3) { > + dev_err(&client->dev, > + "%s: wrong virtual_channel parameter, expected (0..3), got %d\n", > + __func__, channel); > return -EINVAL; > + } > > ret = ov5640_read_reg(sensor, OV5640_REG_DEBUG_MODE, &temp); > if (ret) > -- > 1.9.1 >
