X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fcmd_portio.c;h=eae8f079d6eb23ff70ad293fb3c30c75a7e812d8;hb=50cd93b25033764dcda9bb47aa68be778f94d36e;hp=c88fcd5e451b415ff652378ccdb256c726d4ce88;hpb=afbc526336447a7357e9c82852df0377d09a8089;p=u-boot

diff --git a/common/cmd_portio.c b/common/cmd_portio.c
index c88fcd5e45..eae8f079d6 100644
--- a/common/cmd_portio.c
+++ b/common/cmd_portio.c
@@ -37,19 +37,18 @@ static uint in_last_addr, in_last_size;
 static uint out_last_addr, out_last_size, out_last_value;
 
 
-int do_portio_out (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_portio_out (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uint addr = out_last_addr;
 	uint size = out_last_size;
 	uint value = out_last_value;
 
-	if (argc != 3) {
-		printf ("Usage:\n%s\n", cmdtp->usage);
-		return 1;
-	}
+	if (argc != 3)
+		return CMD_RET_USAGE;
 
 	if ((flag & CMD_FLAG_REPEAT) == 0) {
-		/* New command specified.  Check for a size specification.
+		/*
+		 * New command specified.  Check for a size specification.
 		 * Defaults to long if no or incorrect specification.
 		 */
 		size = cmd_get_data_size (argv[0], 1);
@@ -93,22 +92,21 @@ int do_portio_out (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 U_BOOT_CMD(
 	out,	3,	1,	do_portio_out,
-	"out     - write datum to IO port\n",
-	"[.b, .w, .l] port value\n    - output to IO port\n"
+	"write datum to IO port",
+	"[.b, .w, .l] port value\n    - output to IO port"
 );
 
-int do_portio_in (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_portio_in (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uint addr = in_last_addr;
 	uint size = in_last_size;
 
-	if (argc != 2) {
-		printf ("Usage:\n%s\n", cmdtp->usage);
-		return 1;
-	}
+	if (argc != 2)
+		return CMD_RET_USAGE;
 
 	if ((flag & CMD_FLAG_REPEAT) == 0) {
-		/* New command specified.  Check for a size specification.
+		/*
+		 * New command specified.  Check for a size specification.
 		 * Defaults to long if no or incorrect specification.
 		 */
 		size = cmd_get_data_size (argv[0], 1);
@@ -157,7 +155,7 @@ int do_portio_in (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 U_BOOT_CMD(
 	in,	2,	1,	do_portio_in,
-	"in      - read data from an IO port\n",
+	"read data from an IO port",
 	"[.b, .w, .l] port\n"
-	"    - read datum from IO port\n"
+	"    - read datum from IO port"
 );