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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: iGJ/c4PiNnW60t1CnKxaFTQOj76G40OVY0iM6gyiu1d/qC9/pyrsBhY02BcY6YhaM7METII2Lb9CE22wkfnGzYscJEqQYSwuzMC46gXz4I3qG3GtmGJKoZAjAQnzpFCHt18J1Zqyi+3MBh6oCwBFNzs9oEBnuceF6vrIX/wW4KaaIKXEWXcCHzMM8GnTt67PwWk5KIrSrWss4gWZQqsekC35PphNp6hulOXVx25Qbub3c6q5yF5bgIfXpS7rmeIl4X2ghGW+RAEW9t7rWbdM0g6WawIeNmLbTx7xoFszPO/+fmTXXP6LNV5C6DMMLoUAE5sN0g8CNzM7xc98BCZKK7jaxXR6zfLD4lbxVqPzCUrrYJfVefxC9iWtaIjhl4EblhPvc1DmAnsFN4YmcaqMsYtjnT090eIx5mcS52FQ0a6iYJPo8yACZg+qEF2AMvZp X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jun 2026 13:59:11.5565 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: da866e58-d828-4947-4e7b-08ded0666fef 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: MWH0EPF000C618E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SAWPR12MB999117 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