[U-Boot] [PATCH] cmd: sata: fix init command return value

[Gary Bisson <gary.bisson@boundarydevices.com>]

Since commit aa6ab905b2, sata_initialize returns -1 if init_sata or
scan_sata fails. But this return value becomes the do_sata return
value which is equivalent to CMD_RET_USAGE.

In case one issues 'sata init' and that the hardware fails to
initialize, there's no need to display the command usage. Instead
the command shoud just return the CMD_RET_FAILURE value.

Fixes: aa6ab905b2 (sata: fix sata command can not being executed bug)

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
---
 cmd/sata.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cmd/sata.c b/cmd/sata.c
index f56622acc2..4c53022ff6 100644
--- a/cmd/sata.c
+++ b/cmd/sata.c
@@ -28,14 +28,15 @@ static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		if (sata_curr_device != -1)
 			sata_stop();
 
-		return sata_initialize();
+		return (sata_initialize() < 0) ?
+			CMD_RET_FAILURE : CMD_RET_SUCCESS;
 	}
 
 	/* If the user has not yet run `sata init`, do it now */
 	if (sata_curr_device == -1) {
 		rc = sata_initialize();
 		if (rc == -1)
-			return rc;
+			return CMD_RET_FAILURE;
 		sata_curr_device = rc;
 	}
 
-- 
2.11.0