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i2c: replace i2c_new_probed_device with an ERR_PTR variant

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In the general move to have i2c_new_*_device functions which return
ERR_PTR instead of NULL, this patch converts i2c_new_probed_device().

There are only few users, so this patch converts the I2C core and all
users in one go. The function gets renamed to i2c_new_scanned_device()
so out-of-tree users will get a build failure to understand they need to
adapt their error checking code.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Max Staudt <max@enpas.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang
2019-11-06 10:50:19 +01:00
committed by Wolfram Sang
parent 1b00ff6159
commit c1d084759c
4 changed files with 37 additions and 18 deletions
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25
drivers/i2c/i2c-core-base.c
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@@ -2245,10 +2245,10 @@ int i2c_probe_func_quick_read(struct i2c_adapter *adap, unsigned short addr)
EXPORT_SYMBOL_GPL(i2c_probe_func_quick_read);
struct i2c_client *
i2c_new_probed_device(struct i2c_adapter *adap,
struct i2c_board_info *info,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr))
i2c_new_scanned_device(struct i2c_adapter *adap,
struct i2c_board_info *info,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr))
{
int i;
@@ -2278,11 +2278,24 @@ i2c_new_probed_device(struct i2c_adapter *adap,
if (addr_list[i] == I2C_CLIENT_END) {
dev_dbg(&adap->dev, "Probing failed, no device found\n");
return NULL;
return ERR_PTR(-ENODEV);
}
info->addr = addr_list[i];
return i2c_new_device(adap, info);
return i2c_new_client_device(adap, info);
}
EXPORT_SYMBOL_GPL(i2c_new_scanned_device);
struct i2c_client *
i2c_new_probed_device(struct i2c_adapter *adap,
struct i2c_board_info *info,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr))
{
struct i2c_client *client;
client = i2c_new_scanned_device(adap, info, addr_list, probe);
return IS_ERR(client) ? NULL : client;
}
EXPORT_SYMBOL_GPL(i2c_new_probed_device);