From 8670d70a4286fc9be47f4c9654e071bce97111f2 Mon Sep 17 00:00:00 2001 From: Hugues Fruchet Date: Tue, 6 Feb 2018 08:24:09 -0500 Subject: [PATCH] media: ov5640: fix virtual_channel parameter permissions 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 +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 Reviewed-by: Jacopo Mondi Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- 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 696a28bde1b4..3e7b43ce2b7a 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -128,7 +128,7 @@ static const struct ov5640_pixfmt ov5640_formats[] = { * 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) -- 2.30.2