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media: af9035: fix broken I2C and USB I/O

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commit 9323297dc0 upstream.

There was three small buffer len calculation bugs which caused
driver non-working. These are coming from recent commit:
commit 7760e14835
[media] af9035: Don't use dynamic static allocation

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Antti Palosaari
2013-11-27 17:23:00 -03:00
committed by Greg Kroah-Hartman
parent c3d8edeff2
commit b96e6f2b02
1 changed files with 4 additions and 4 deletions
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8
drivers/media/usb/dvb-usb-v2/af9035.c
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@@ -130,7 +130,7 @@ static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
{
u8 wbuf[MAX_XFER_SIZE];
u8 mbox = (reg >> 16) & 0xff;
struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL };
struct usb_req req = { CMD_MEM_WR, mbox, 6 + len, wbuf, 0, NULL };
if (6 + len > sizeof(wbuf)) {
dev_warn(&d->udev->dev, "%s: i2c wr: len=%d is too big!\n",
@@ -237,7 +237,7 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
} else {
/* I2C */
u8 buf[MAX_XFER_SIZE];
struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
buf, msg[1].len, msg[1].buf };
if (5 + msg[0].len > sizeof(buf)) {
@@ -273,8 +273,8 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
} else {
/* I2C */
u8 buf[MAX_XFER_SIZE];
struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf,
0, NULL };
struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
buf, 0, NULL };
if (5 + msg[0].len > sizeof(buf)) {
dev_warn(&d->udev->dev,