openwrt: Raspberry PI gpiomem fix

hcxdumptool.c

@@ -4530,7 +4530,7 @@ if((modinfo = fopen("/proc/device-tree/model", "r")) == NULL)
 len = fgetline(modinfo, RASPBERRY_INFO, linein);
 fclose(modinfo);
 if(len < RPINAME_SIZE) return false;
-if(memcmp(&rpiname, &linein, RPINAME_SIZE) != 0) return false;
+if(memcmp(rpiname, linein, RPINAME_SIZE) != 0) return false;
 if((procinfo = fopen("/proc/cpuinfo", "r")) != NULL)
 	{
 	while(1)
@@ -4546,37 +4546,37 @@ if((procinfo = fopen("/proc/cpuinfo", "r")) != NULL)
 		}
 	fclose(procinfo);
 	}
-if((procinfo = fopen("/proc/iomem", "r")) != NULL)
+if((fd_devinfo = open("/dev/gpiomem", O_RDWR | O_SYNC)) > 0)
 	{
-	while(1)
+	gpio_map = mmap(NULL, RPI_BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd_devinfo, gpioperibase);
+	close(fd_devinfo);
+	}
+else
+	{
+	if((procinfo = fopen("/proc/iomem", "r")) != NULL)
 		{
-		if((len = fgetline(procinfo, RASPBERRY_INFO, linein)) == -1) break;
-		if(strstr(linein, ".gpio") != NULL)
+		while(1)
 			{
-			if(linein[8] != '-') break;
+			if((len = fgetline(procinfo, RASPBERRY_INFO, linein)) == -1) break;
+			if(strstr(linein, ".gpio") != NULL)
 				{
-				linein[8] = 0;
-				gpioperibase = strtoul(linein, NULL, 16);
-				break;
+				if(linein[8] != '-') break;
+					{
+					linein[8] = 0;
+					gpioperibase = strtoul(linein, NULL, 16);
+					if(gpioperibase != 0)
+						{
+						if((fd_devinfo = open("/dev/mem", O_RDWR | O_SYNC)) > 0)
+							{
+							gpio_map = mmap(NULL, RPI_BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd_devinfo, gpioperibase);
+							close(fd_devinfo);
+							}
+						}
+					break;
+					}
 				}
 			}
-		}
-	fclose(procinfo);
-	}
-if(gpioperibase != 0)
-	{
-	if((fd_devinfo = open("/dev/mem", O_RDWR | O_SYNC)) > 0)
-		{
-		gpio_map = mmap(NULL, RPI_BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd_devinfo, gpioperibase);
-		close(fd_devinfo);
-		}
-	}
-else
-	{
-	if((fd_devinfo = open("/dev/gpiomem", O_RDWR | O_SYNC)) > 0)
-		{
-		gpio_map = mmap(NULL, RPI_BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd_devinfo, gpioperibase);
-		close(fd_devinfo);
+		fclose(procinfo);
 		}
 	}
 if(gpio_map == MAP_FAILED)