Fix more warnings in scsiapi_linux

Author: CalcProgrammer1

scsiapi/scsiapi_linux.c

@@ -84,7 +84,7 @@ struct scsi_device_info * scsi_enumerate(const char * vendor, const char * produ
         read(sg_model_fd, sg_model_buf, 512);
         close(sg_model_fd);
 
-        for(int i = 0; i < strlen(sg_model_buf); i++)
+        for(unsigned int i = 0; i < strlen(sg_model_buf); i++)
         {
             if(sg_model_buf[i] == '\r' || sg_model_buf[i] == '\n')
             {
@@ -99,7 +99,7 @@ struct scsi_device_info * scsi_enumerate(const char * vendor, const char * produ
         read(sg_vendor_fd, sg_vendor_buf, 512);
         close(sg_vendor_fd);
 
-        for(int i = 0; i < strlen(sg_vendor_buf); i++)
+        for(unsigned int i = 0; i < strlen(sg_vendor_buf); i++)
         {
             if(sg_vendor_buf[i] == '\r' || sg_vendor_buf[i] == '\n')
             {
@@ -210,8 +210,8 @@ int scsi_write(struct scsi_device * dev, const unsigned char * data, size_t data
     header.mx_sb_len                        = sense_length;
     header.iovec_count                      = 0;
     header.dxfer_len                        = data_length;
-    header.dxferp                           = data;
-    header.cmdp                             = cdb;
+    header.dxferp                           = (void *)data;
+    header.cmdp                             = (unsigned char *)cdb;
     header.sbp                              = sense;
     header.timeout                          = 20000;
     header.flags                            = 0;