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Add visible error on missing uw interface read/write attempt

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This commit is contained in:
Christoffer Sandberg 2021-09-16 20:33:05 +02:00
parent 16f7c246dd
commit 931d3c7f30
1 changed files with 18 additions and 10 deletions
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28
src/uniwill_keyboard.h
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@ -97,23 +97,31 @@ uniwill_event_callb_t uniwill_event_callb;
u32 uniwill_read_ec_ram(u16 address, u8 *data) u32 uniwill_read_ec_ram(u16 address, u8 *data)
{ {
if (!IS_ERR_OR_NULL(uniwill_interfaces.wmi)) u32 status;
uniwill_interfaces.wmi->read_ec_ram(address, data);
else
return -EIO;
return 0; if (!IS_ERR_OR_NULL(uniwill_interfaces.wmi))
status = uniwill_interfaces.wmi->read_ec_ram(address, data);
else {
pr_err("no active interface while read addr 0x%04x\n", address);
status = -EIO;
}
return status;
} }
EXPORT_SYMBOL(uniwill_read_ec_ram); EXPORT_SYMBOL(uniwill_read_ec_ram);
u32 uniwill_write_ec_ram(u16 address, u8 data) u32 uniwill_write_ec_ram(u16 address, u8 data)
{ {
if (!IS_ERR_OR_NULL(uniwill_interfaces.wmi)) u32 status;
uniwill_interfaces.wmi->write_ec_ram(address, data);
else
return -EIO;
return 0; if (!IS_ERR_OR_NULL(uniwill_interfaces.wmi))
status = uniwill_interfaces.wmi->write_ec_ram(address, data);
else {
pr_err("no active interface while write addr 0x%04x data 0x%02x\n", address, data);
status = -EIO;
}
return status;
} }
EXPORT_SYMBOL(uniwill_write_ec_ram); EXPORT_SYMBOL(uniwill_write_ec_ram);