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SubjectRe: [PATCH] media: dvb-frontends: Use kmemdup instead of duplicating its function
Hi zhong,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.19-rc4 next-20180918]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/zhong-jiang/media-dvb-frontends-Use-kmemdup-instead-of-duplicating-its-function/20180919-063244
base: git://linuxtv.org/media_tree.git master
config: i386-randconfig-x002-201837 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/media/dvb-frontends/lgdt3306a.c: In function 'lgdt3306a_probe':
>> drivers/media/dvb-frontends/lgdt3306a.c:2208:2: error: 'onfig' undeclared (first use in this function); did you mean 'config'?
onfig = kmemdup(client->dev.platform_data,
^~~~~
config
drivers/media/dvb-frontends/lgdt3306a.c:2208:2: note: each undeclared identifier is reported only once for each function it appears in

vim +2208 drivers/media/dvb-frontends/lgdt3306a.c

2199
2200 static int lgdt3306a_probe(struct i2c_client *client,
2201 const struct i2c_device_id *id)
2202 {
2203 struct lgdt3306a_config *config;
2204 struct lgdt3306a_state *state;
2205 struct dvb_frontend *fe;
2206 int ret;
2207
> 2208 onfig = kmemdup(client->dev.platform_data,
2209 sizeof(struct lgdt3306a_config), GFP_KERNEL);
2210 if (config == NULL) {
2211 ret = -ENOMEM;
2212 goto fail;
2213 }
2214
2215 config->i2c_addr = client->addr;
2216 fe = lgdt3306a_attach(config, client->adapter);
2217 if (fe == NULL) {
2218 ret = -ENODEV;
2219 goto err_fe;
2220 }
2221
2222 i2c_set_clientdata(client, fe->demodulator_priv);
2223 state = fe->demodulator_priv;
2224 state->frontend.ops.release = NULL;
2225
2226 /* create mux i2c adapter for tuner */
2227 state->muxc = i2c_mux_alloc(client->adapter, &client->dev,
2228 1, 0, I2C_MUX_LOCKED,
2229 lgdt3306a_select, lgdt3306a_deselect);
2230 if (!state->muxc) {
2231 ret = -ENOMEM;
2232 goto err_kfree;
2233 }
2234 state->muxc->priv = client;
2235 ret = i2c_mux_add_adapter(state->muxc, 0, 0, 0);
2236 if (ret)
2237 goto err_kfree;
2238
2239 /* create dvb_frontend */
2240 fe->ops.i2c_gate_ctrl = NULL;
2241 *config->i2c_adapter = state->muxc->adapter[0];
2242 *config->fe = fe;
2243
2244 dev_info(&client->dev, "LG Electronics LGDT3306A successfully identified\n");
2245
2246 return 0;
2247
2248 err_kfree:
2249 kfree(state);
2250 err_fe:
2251 kfree(config);
2252 fail:
2253 dev_warn(&client->dev, "probe failed = %d\n", ret);
2254 return ret;
2255 }
2256

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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