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path: root/drivers/media/usb/dvb-usb-v2
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Diffstat (limited to 'drivers/media/usb/dvb-usb-v2')
-rw-r--r--drivers/media/usb/dvb-usb-v2/af9035.c19
-rw-r--r--drivers/media/usb/dvb-usb-v2/anysee.c2
-rw-r--r--drivers/media/usb/dvb-usb-v2/az6007.c11
-rw-r--r--drivers/media/usb/dvb-usb-v2/ce6230.c8
-rw-r--r--drivers/media/usb/dvb-usb-v2/ec168.c12
-rw-r--r--drivers/media/usb/dvb-usb-v2/rtl28xxu.c20
6 files changed, 64 insertions, 8 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 1f6c1eefe389..2ed29a99fee1 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -284,6 +284,7 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
struct dvb_usb_device *d = i2c_get_adapdata(adap);
struct state *state = d_to_priv(d);
int ret;
+ u32 reg;
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
@@ -336,8 +337,12 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
ret = -EOPNOTSUPP;
} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
(msg[0].addr == state->af9033_i2c_addr[1])) {
+ if (msg[0].len < 3 || msg[1].len < 1) {
+ ret = -EOPNOTSUPP;
+ goto unlock;
+ }
/* demod access via firmware interface */
- u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
+ reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
msg[0].buf[2];
if (msg[0].addr == state->af9033_i2c_addr[1])
@@ -395,17 +400,18 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
ret = -EOPNOTSUPP;
} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
(msg[0].addr == state->af9033_i2c_addr[1])) {
+ if (msg[0].len < 3) {
+ ret = -EOPNOTSUPP;
+ goto unlock;
+ }
/* demod access via firmware interface */
- u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
+ reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
msg[0].buf[2];
if (msg[0].addr == state->af9033_i2c_addr[1])
reg |= 0x100000;
- ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
- &msg[0].buf[3],
- msg[0].len - 3)
- : -EOPNOTSUPP;
+ ret = af9035_wr_regs(d, reg, &msg[0].buf[3], msg[0].len - 3);
} else {
/* I2C write */
u8 buf[MAX_XFER_SIZE];
@@ -472,6 +478,7 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
ret = -EOPNOTSUPP;
}
+unlock:
mutex_unlock(&d->i2c_mutex);
if (ret < 0)
diff --git a/drivers/media/usb/dvb-usb-v2/anysee.c b/drivers/media/usb/dvb-usb-v2/anysee.c
index 20ee7eea2a91..83af86505363 100644
--- a/drivers/media/usb/dvb-usb-v2/anysee.c
+++ b/drivers/media/usb/dvb-usb-v2/anysee.c
@@ -211,7 +211,7 @@ static int anysee_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
while (i < num) {
if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
- if (msg[i].len > 2 || msg[i+1].len > 60) {
+ if (msg[i].len != 2 || msg[i + 1].len > 60) {
ret = -EOPNOTSUPP;
break;
}
diff --git a/drivers/media/usb/dvb-usb-v2/az6007.c b/drivers/media/usb/dvb-usb-v2/az6007.c
index 746926364535..2f40eb6bdbb8 100644
--- a/drivers/media/usb/dvb-usb-v2/az6007.c
+++ b/drivers/media/usb/dvb-usb-v2/az6007.c
@@ -210,7 +210,8 @@ static int az6007_rc_query(struct dvb_usb_device *d)
unsigned code;
enum rc_proto proto;
- az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10);
+ if (az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10) < 0)
+ return -EIO;
if (st->data[1] == 0x44)
return 0;
@@ -795,6 +796,10 @@ static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
if (az6007_xfer_debug)
printk(KERN_DEBUG "az6007: I2C W addr=0x%x len=%d\n",
addr, msgs[i].len);
+ if (msgs[i].len < 1) {
+ ret = -EIO;
+ goto err;
+ }
req = AZ6007_I2C_WR;
index = msgs[i].buf[0];
value = addr | (1 << 8);
@@ -809,6 +814,10 @@ static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
if (az6007_xfer_debug)
printk(KERN_DEBUG "az6007: I2C R addr=0x%x len=%d\n",
addr, msgs[i].len);
+ if (msgs[i].len < 1) {
+ ret = -EIO;
+ goto err;
+ }
req = AZ6007_I2C_RD;
index = msgs[i].buf[0];
value = addr;
diff --git a/drivers/media/usb/dvb-usb-v2/ce6230.c b/drivers/media/usb/dvb-usb-v2/ce6230.c
index e596031a708d..80a07aab3b4b 100644
--- a/drivers/media/usb/dvb-usb-v2/ce6230.c
+++ b/drivers/media/usb/dvb-usb-v2/ce6230.c
@@ -111,6 +111,10 @@ static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,
if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
if (msg[i].addr ==
ce6230_zl10353_config.demod_address) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
req.cmd = DEMOD_READ;
req.value = msg[i].addr >> 1;
req.index = msg[i].buf[0];
@@ -127,6 +131,10 @@ static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,
} else {
if (msg[i].addr ==
ce6230_zl10353_config.demod_address) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
req.cmd = DEMOD_WRITE;
req.value = msg[i].addr >> 1;
req.index = msg[i].buf[0];
diff --git a/drivers/media/usb/dvb-usb-v2/ec168.c b/drivers/media/usb/dvb-usb-v2/ec168.c
index 1db8aeef3655..19605958501e 100644
--- a/drivers/media/usb/dvb-usb-v2/ec168.c
+++ b/drivers/media/usb/dvb-usb-v2/ec168.c
@@ -125,6 +125,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
while (i < num) {
if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
if (msg[i].addr == ec168_ec100_config.demod_address) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
req.cmd = READ_DEMOD;
req.value = 0;
req.index = 0xff00 + msg[i].buf[0]; /* reg */
@@ -141,6 +145,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
}
} else {
if (msg[i].addr == ec168_ec100_config.demod_address) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
req.cmd = WRITE_DEMOD;
req.value = msg[i].buf[1]; /* val */
req.index = 0xff00 + msg[i].buf[0]; /* reg */
@@ -149,6 +157,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
ret = ec168_ctrl_msg(d, &req);
i += 1;
} else {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
req.cmd = WRITE_I2C;
req.value = msg[i].buf[0]; /* val */
req.index = 0x0100 + msg[i].addr; /* I2C addr */
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index 857ef9edbc12..195b1977b6a6 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -189,6 +189,10 @@ static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
ret = -EOPNOTSUPP;
goto err_mutex_unlock;
} else if (msg[0].addr == 0x10) {
+ if (msg[0].len < 1 || msg[1].len < 1) {
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ }
/* method 1 - integrated demod */
if (msg[0].buf[0] == 0x00) {
/* return demod page from driver cache */
@@ -202,6 +206,10 @@ static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
ret = rtl28xxu_ctrl_msg(d, &req);
}
} else if (msg[0].len < 2) {
+ if (msg[0].len < 1) {
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ }
/* method 2 - old I2C */
req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
req.index = CMD_I2C_RD;
@@ -230,8 +238,16 @@ static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
ret = -EOPNOTSUPP;
goto err_mutex_unlock;
} else if (msg[0].addr == 0x10) {
+ if (msg[0].len < 1) {
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ }
/* method 1 - integrated demod */
if (msg[0].buf[0] == 0x00) {
+ if (msg[0].len < 2) {
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ }
/* save demod page for later demod access */
dev->page = msg[0].buf[1];
ret = 0;
@@ -244,6 +260,10 @@ static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
ret = rtl28xxu_ctrl_msg(d, &req);
}
} else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
+ if (msg[0].len < 1) {
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ }
/* method 2 - old I2C */
req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
req.index = CMD_I2C_WR;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 05:51:42 +0000