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| author | Daniel Scheller <d.scheller@gmx.net> | 2017-08-12 14:55:58 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-20 14:08:12 +0300 |
| commit | 1bdafdf02711c18b54e4d981b96dc0abe9503668 (patch) | |
| tree | 27db591b83f512ee0aee87a8d48d57c46b963046 | |
| parent | 8ac9fd4348677cb2ead6776b9f8042c952a3f67c (diff) | |
| download | linux-1bdafdf02711c18b54e4d981b96dc0abe9503668.tar.xz | |
media: ddbridge: remove unreachable code
>From smatch:
drivers/media/pci/ddbridge/ddbridge-core.c:3490 snr_store() info: ignoring unreachable code.
In fact, the function immediately returns zero, so remove it and update
ddb_attrs_snr[] to not reference it anymore.
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Tested-by: Jasmin Jessich <jasmin@anw.at>
Tested-by: Dietmar Spingler <d_spingler@freenet.de>
Tested-by: Manfred Knick <Manfred.Knick@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | drivers/media/pci/ddbridge/ddbridge-core.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c index 5df942f4e388..747f3b317fb9 100644 --- a/drivers/media/pci/ddbridge/ddbridge-core.c +++ b/drivers/media/pci/ddbridge/ddbridge-core.c @@ -3092,25 +3092,6 @@ static ssize_t snr_show(struct device *device, return sprintf(buf, "%s\n", snr); } - -static ssize_t snr_store(struct device *device, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct ddb *dev = dev_get_drvdata(device); - int num = attr->attr.name[3] - 0x30; - u8 snr[34] = { 0x01, 0x00 }; - - return 0; /* NOE: remove completely? */ - if (count > 31) - return -EINVAL; - if (dev->port[num].type >= DDB_TUNER_XO2) - return -EINVAL; - memcpy(snr + 2, buf, count); - i2c_write(&dev->i2c[num].adap, 0x57, snr, 34); - i2c_write(&dev->i2c[num].adap, 0x50, snr, 34); - return count; -} - static ssize_t bsnr_show(struct device *device, struct device_attribute *attr, char *buf) { @@ -3250,10 +3231,10 @@ static struct device_attribute ddb_attrs_fan[] = { }; static struct device_attribute ddb_attrs_snr[] = { - __ATTR(snr0, 0664, snr_show, snr_store), - __ATTR(snr1, 0664, snr_show, snr_store), - __ATTR(snr2, 0664, snr_show, snr_store), - __ATTR(snr3, 0664, snr_show, snr_store), + __ATTR_MRO(snr0, snr_show), + __ATTR_MRO(snr1, snr_show), + __ATTR_MRO(snr2, snr_show), + __ATTR_MRO(snr3, snr_show), }; static struct device_attribute ddb_attrs_ctemp[] = { |