[05/12] thunderbolt: Return -ENOTCONN when ERR_CONN is received
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Message ID 20201119155523.41332-6-mika.westerberg@linux.intel.com
State Accepted
Commit 463e48fa544826898791085508459de246fc4c09
Headers show
  • thunderbolt: USB4 NVM upgrade improvements & Maple Ridge support
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Commit Message

Mika Westerberg Nov. 19, 2020, 3:55 p.m. UTC
This allows the calling code to distinguish if the error was due to
ERR_CONN (adapter is disconneced or disabled) or something else. Will be
needed in USB4 router NVM update in the following patch.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
 drivers/thunderbolt/ctl.c | 3 +++
 1 file changed, 3 insertions(+)

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diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 1d86e27a0ef3..bac08b820015 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -962,6 +962,9 @@  static int tb_cfg_get_error(struct tb_ctl *ctl, enum tb_cfg_space space,
 	if (res->tb_error == TB_CFG_ERROR_LOCK)
 		return -EACCES;
+	else if (res->tb_error == TB_CFG_ERROR_PORT_NOT_CONNECTED)
+		return -ENOTCONN;
 	return -EIO;