addr2line.c: clarify the type of integer expression

to suppress Coverity Scan warning.
This expression converted uint8_t to int, and then int to unsigned long.
Now it directly converts uint8_t to unsigned long.

1 files changed, 1 insertions, 1 deletions

diff --git a/addr2line.c b/addr2line.c
index f6befce53e..9e7df4e7fb 100644
--- a/addr2line.c
+++ b/addr2line.c
@@ -432,7 +432,7 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
 	    /*basic_block = 1; */
 	    break;
 	case DW_LNS_const_add_pc:
-	    a = ((255 - header.opcode_base) / header.line_range) *
+	    a = ((255UL - header.opcode_base) / header.line_range) *
 		header.minimum_instruction_length;
 	    addr += a;
 	    break;