diff options
| author | Ranjan Kumar <ranjan.kumar@broadcom.com> | 2025-06-28 01:15:36 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:30:57 +0200 |
| commit | 2c84f085d628f861abee3ed43090442e8ada30aa (patch) | |
| tree | 540a30425baa09bec226fd73aa85e6c5cd8894e2 | |
| parent | dc8fb963742f1a38d284946638f9358bdaa0ddee (diff) | |
scsi: mpi3mr: Fix race between config read submit and interrupt completion
commit e6327c4acf925bb6d6d387d76fc3bd94471e10d8 upstream.
The "is_waiting" flag was updated after calling complete(), which could
lead to a race where the waiting thread wakes up before the flag is
cleared. This may cause a missed wakeup or stale state check.
Reorder the operations to update "is_waiting" before signaling completion
to ensure consistent state.
Fixes: 824a156633df ("scsi: mpi3mr: Base driver code")
Cc: stable@vger.kernel.org
Co-developed-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20250627194539.48851-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 604f37e5c0c3..0e43de60737e 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -428,8 +428,8 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, MPI3MR_SENSE_BUF_SZ); } if (cmdptr->is_waiting) { - complete(&cmdptr->done); cmdptr->is_waiting = 0; + complete(&cmdptr->done); } else if (cmdptr->callback) cmdptr->callback(mrioc, cmdptr); } |