ACPI: pfr_telemetry: remove redundant error check on ret

The variable ret is initialized to zero and a littler later in
the PFRT_LOG_IOC_GET_INFO case of a switch statement is being checked
for negative error value. Since ret has not been re-assigned since
the initialization ret can never be less than zero so the check is
redundant and can be removed. Remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20241014130522.1986428-1-colin.i.king@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: ColinIanKing

drivers/acpi/pfr_telemetry.c

@@ -272,9 +272,6 @@ static long pfrt_log_ioctl(struct file *file, unsigned int cmd, unsigned long ar
 
 	case PFRT_LOG_IOC_GET_INFO:
 		info.log_level = get_pfrt_log_level(pfrt_log_dev);
-		if (ret < 0)
-			return ret;
-
 		info.log_type = pfrt_log_dev->info.log_type;
 		info.log_revid = pfrt_log_dev->info.log_revid;
 		if (copy_to_user(p, &info, sizeof(info)))