From a0c6143e95c5b9e1f2d83e005e4e86ed3dc6096f Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Date: Thu, 16 Feb 2017 12:51:13 -0800 Subject: [PATCH] scsi: aacraid: Prevent E3 lockup when deleting units Arrconf management utility at times sends fibs with AdapterProcessed set in its fibs. This causes the controller to panic and lockup. Fixed by failing the commands that have AdapterProcessed set in its flag. Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: David Carroll <David.Carroll@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> --- drivers/scsi/aacraid/commsup.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index a8dd4b51b086c9..e221321d97d265 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -527,6 +527,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) return -EBUSY; + + if (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)) + return -EINVAL; + /* * There are 5 cases with the wait and response requested flags. * The only invalid cases are if the caller requests to wait and -- GitLab