git: 154e335cd635 - main - ufshci: fail attribute reads on a non-zero config result code

The branch main has been updated by jaeyoon:

URL: https://cgit.FreeBSD.org/src/commit/?id=154e335cd635436c69ad98723e25988852bd11db

commit 154e335cd635436c69ad98723e25988852bd11db
Author:     Jaeyoon Choi <jaeyoon@FreeBSD.org>
AuthorDate: 2026-08-10 01:33:00 +0000
Commit:     Jaeyoon Choi <jaeyoon@FreeBSD.org>
CommitDate: 2026-08-10 02:28:47 +0000

    ufshci: fail attribute reads on a non-zero config result code
    
    ufshci_uic_send_cmd() only logged the error code and returned success,
    so a failed DME_GET gave its caller a stale value as if it were valid.
    The gear and lane settings could then be programmed from that garbage.
    
    Return ENXIO for reads instead. Writes keep logging and continuing,
    because a device may reject an optional attribute and that must not
    fail bring-up.
    
    Sponsored by:           Samsung Electronics
    Reviewed by             imp (mentor)
    Differential Revision:  https://reviews.freebsd.org/D58654
---
 sys/dev/ufshci/ufshci_uic_cmd.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sys/dev/ufshci/ufshci_uic_cmd.c b/sys/dev/ufshci/ufshci_uic_cmd.c
index c6e6afe3f688..03ea8b2ba9f1 100644
--- a/sys/dev/ufshci/ufshci_uic_cmd.c
+++ b/sys/dev/ufshci/ufshci_uic_cmd.c
@@ -199,6 +199,14 @@ ufshci_uic_send_cmd(struct ufshci_controller *ctrlr,
 		    "Failed to send UIC command (Opcode: 0x%x"
 		    ", config result code = 0x%x)\n",
 		    uic_cmd->opcode, config_result_code);
+		/*
+		 * Reads fail here: there is no valid result to return.
+		 * Writes only log the error, so that a rejected optional
+		 * attribute does not fail bring-up.
+		 */
+		if (return_value != NULL)
+			return (ENXIO);
+		return (0);
 	}
 
 	if (return_value != NULL)