[PATCH] Fix sign handling bugs in epca

From: Ravikiran G Thirumalai <kiran@in.ibm.com>

Don't check unsigned values for <= 0.

drivers/char/epca.c

@@ -3640,7 +3640,7 @@ void epca_setup(char *str, int *ints)
 
 			case 5:
 				board.port = (unsigned char *)ints[index];
-				if (board.port <= 0)
+				if (ints[index] <= 0)
 				{
 					printk(KERN_ERR "<Error> - epca_setup: Invalid io port 0x%x\n", (unsigned int)board.port);
 					invalid_lilo_config = 1;
@@ -3652,7 +3652,7 @@ void epca_setup(char *str, int *ints)
 
 			case 6:
 				board.membase = (unsigned char *)ints[index];
-				if (board.membase <= 0)
+				if (ints[index] <= 0)
 				{
 					printk(KERN_ERR "<Error> - epca_setup: Invalid memory base 0x%x\n",(unsigned int)board.membase);
 					invalid_lilo_config = 1;