[PATCH v2 6/9] commands: tlv: clarify error opening tlv

[Jonas Rebmann <jre@pengutronix.de>]

Returning PTR_ERR(tlvdev) instead of printing an error message leads to
the same output when CONFIG_CMD_TLV and when the specified path could
not be read:

  tlv: No such file or directory

In the latter case, print an explanatory message instead.

Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
---
 commands/tlv.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/commands/tlv.c b/commands/tlv.c
index 53fbc2a291..6118a2947f 100644
--- a/commands/tlv.c
+++ b/commands/tlv.c
@@ -28,9 +28,11 @@ static int do_tlv(int argc, char *argv[])
 	if (!filename)
 		return COMMAND_ERROR_USAGE;
 
-	tlvdev = tlv_register_device_by_path(argv[optind], NULL);
-	if (IS_ERR(tlvdev))
-		return PTR_ERR(tlvdev);
+	tlvdev = tlv_register_device_by_path(filename, NULL);
+	if (IS_ERR(tlvdev)) {
+		printf("Could not open \"%s\": %m\n", filename);
+		return COMMAND_ERROR;
+	}
 
 	if (fixup)
 		return tlv_of_register_fixup(tlvdev);

-- 
2.51.0.297.gca2559c1d6