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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Ipp23IFj0yQlFz9x+Th86e349ilG6ffPfp9yxypCzqjqRYyP4yrAW/qjp6u0L1z0dNunZkac9C0h19z8vwHwBQBl0oWKHt5kLtze+eN6Qr7iDnrgQtNHlrDdpIMFzI6lQ1Ktw+SV3tPKhPdwc+46TMlfWFiYp6a/XtLTBwqxJzpqK6/lM7RfKSXRr/jwvTYq6FEa+pbDoaoYNo++GrAtYlwEcW5Ttejb9ANP3pAI5d9NFwWlkJdj/WFbq/FngSCwPcCtadNLQA5y6prJB7p6fEkwAnV4sZG8M1ZBHcRhSNKDJwnk4MlPMSAg/4HvDjgUoJrmXBG93VO+phH76a0hnKDzsed8yhxbvWL7vkUvjUY2HLhyRvxhKguTfxFXNZR2UPAODnUNQURSO8XZU45CAjVnZwPOssQk5haJ4qzN0LW/BmPc1XuSXtnoDsLQhTA7 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jul 2026 11:17:31.8252 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6c404fcd-e1db-440d-b16f-08dede74d5e0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF0001709C.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6762 From: Prathima Add a mutex and take it around SBTSI read/write paths so that only one transaction runs at a time. The lock is held only for the duration of the bus transfer and associated driver bookkeeping, not across blocking work unrelated to SBTSI. This is a concurrency hardening fix. Reviewed-by: Akshay Gupta Signed-off-by: Prathima --- Changes since v2: - New patch drivers/hwmon/sbtsi_temp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwmon/sbtsi_temp.c b/drivers/hwmon/sbtsi_temp.c index d7ae986d824c..11c8108d69b2 100644 --- a/drivers/hwmon/sbtsi_temp.c +++ b/drivers/hwmon/sbtsi_temp.c @@ -70,6 +70,7 @@ static int sbtsi_temp_read(struct sbtsi_data *data, u8 reg1, u8 reg2, { int ret; + guard(sbtsi)(data); ret = sbtsi_xfer(data, reg1, val1, true); if (!ret) ret = sbtsi_xfer(data, reg2, val2, true); @@ -84,6 +85,7 @@ static int sbtsi_temp_write(struct sbtsi_data *data, u8 reg_int, u8 reg_dec, { int ret; + guard(sbtsi)(data); ret = sbtsi_xfer(data, reg_int, &val_int, false); if (!ret) ret = sbtsi_xfer(data, reg_dec, &val_dec, false); -- 2.34.1