linux-kernel - [PATCH 1/2] i3c: master: svc: change ENXIO to EAGAIN when IBI occurs during start frame

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240424190030.857632-1-Frank.Li@nxp.com>
Date: Wed, 24 Apr 2024 15:00:29 -0400
From: Frank Li <Frank.Li@....com>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
	Conor Culhane <conor.culhane@...vaco.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	linux-i3c@...ts.infradead.org (moderated list:SILVACO I3C DUAL-ROLE MASTER),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/2] i3c: master: svc: change ENXIO to EAGAIN when IBI occurs during start frame

svc_i3c_master_xfer() returns error ENXIO if an In-Band Interrupt (IBI)
occurs when the host starts the frame.

Change error code to EAGAIN to inform the client driver that this
situation has occurred and to try again sometime later.

Fixes: 5e5e3c92e748 ("i3c: master: svc: fix wrong data return when IBI happen during start frame")
Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/i3c/master/svc-i3c-master.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 5ee4db68988e2..a2298ab460a37 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -1080,7 +1080,7 @@ static int svc_i3c_master_xfer(struct svc_i3c_master *master,
 	 * and yield the above events handler.
 	 */
 	if (SVC_I3C_MSTATUS_IBIWON(reg)) {
-		ret = -ENXIO;
+		ret = -EAGAIN;
 		*actual_len = 0;
 		goto emit_stop;
 	}
-- 
2.34.1