tree: git://linuxtv.org/media_tree.git master
head: ebf984bb151e9952cccd060d3aba0b4d30a87e81
commit: 5f954b5be4bf42e85e0a204518499bda8ee2f419 [834/883] [media] saa7164: I2C
improvements for upcoming HVR2255/2205 boards
reproduce:
# apt-get install sparse
git checkout 5f954b5be4bf42e85e0a204518499bda8ee2f419
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> drivers/media/pci/saa7164/saa7164-i2c.c:45:33: sparse: Using plain integer
>> as NULL pointer
vim +45 drivers/media/pci/saa7164/saa7164-i2c.c
29
30 static int i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
int num)
31 {
32 struct saa7164_i2c *bus = i2c_adap->algo_data;
33 struct saa7164_dev *dev = bus->dev;
34 int i, retval = 0;
35
36 dprintk(DBGLVL_I2C, "%s(num = %d)\n", __func__, num);
37
38 for (i = 0 ; i < num; i++) {
39 dprintk(DBGLVL_I2C, "%s(num = %d) addr = 0x%02x len =
0x%x\n",
40 __func__, num, msgs[i].addr, msgs[i].len);
41 if (msgs[i].flags & I2C_M_RD) {
42 retval = saa7164_api_i2c_read(bus,
43 msgs[i].addr,
44 0 /* reglen */,
> 45 0 /* reg */, msgs[i].len, msgs[i].buf);
46 } else if (i + 1 < num && (msgs[i + 1].flags &
I2C_M_RD) &&
47 msgs[i].addr == msgs[i + 1].addr) {
48 /* write then read from same address */
49
50 retval = saa7164_api_i2c_read(bus, msgs[i].addr,
51 msgs[i].len, msgs[i].buf,
52 msgs[i+1].len, msgs[i+1].buf
53 );
---
0-DAY kernel test infrastructure Open Source Technology Center
http://lists.01.org/mailman/listinfo/kbuild Intel Corporation
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