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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:17:38 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:17:38 +0000 |
| commit | 9db339b27f903add3e85b6448c6ca4681450c187 (patch) | |
| tree | 2e9f25d374e0b322841a7cabe8100b5b52c0e69d /drivers/media/usb/dvb-usb/az6027.c | |
| parent | Adding upstream version 4.19.282. (diff) | |
| download | linux-ed41b89fac4d392e1fa307ebc621ae79789c537c.tar.xz linux-ed41b89fac4d392e1fa307ebc621ae79789c537c.zip | |
Adding upstream version 4.19.289.upstream/4.19.289
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/usb/dvb-usb/az6027.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/az6027.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c index 7d71ac781..fdd57d84c 100644 --- a/drivers/media/usb/dvb-usb/az6027.c +++ b/drivers/media/usb/dvb-usb/az6027.c @@ -991,6 +991,10 @@ static int az6027_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int n /* write/read request */ if (i + 1 < num && (msg[i + 1].flags & I2C_M_RD)) { req = 0xB9; + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } index = (((msg[i].buf[0] << 8) & 0xff00) | (msg[i].buf[1] & 0x00ff)); value = msg[i].addr + (msg[i].len << 8); length = msg[i + 1].len + 6; @@ -1004,6 +1008,10 @@ static int az6027_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int n /* demod 16bit addr */ req = 0xBD; + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } index = (((msg[i].buf[0] << 8) & 0xff00) | (msg[i].buf[1] & 0x00ff)); value = msg[i].addr + (2 << 8); length = msg[i].len - 2; @@ -1029,6 +1037,10 @@ static int az6027_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int n } else { req = 0xBD; + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } index = msg[i].buf[0] & 0x00FF; value = msg[i].addr + (1 << 8); length = msg[i].len - 1; |