From: Raghava Aditya Renukunta Date: Wed, 27 Dec 2017 04:34:27 +0000 (-0800) Subject: scsi: aacraid: Allow reset_host sysfs var to recover Panicked Fw X-Git-Tag: v4.16-rc1~140^2~156 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d1471eb0faef9edd65cd44c1a3c1ff13c251fead;p=thirdparty%2Fkernel%2Flinux.git scsi: aacraid: Allow reset_host sysfs var to recover Panicked Fw It is possible to restart the controller via the use of the reset_host sysfs variable. This does work for controllers that can no longer respond, since driver will attempt to send down a shutdown in this path. Check if the controller is able to receive commands before sending down a shutdown Signed-off-by: Raghava Aditya Renukunta Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 1bc623ad3fafa..9eff246ba3a30 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -295,12 +295,10 @@ int aac_send_shutdown(struct aac_dev * dev) { struct fib * fibctx; struct aac_close *cmd; - int status; + int status = 0; - fibctx = aac_fib_alloc(dev); - if (!fibctx) - return -ENOMEM; - aac_fib_init(fibctx); + if (aac_adapter_check_health(dev)) + return status; if (!dev->adapter_shutdown) { mutex_lock(&dev->ioctl_mutex); @@ -308,6 +306,11 @@ int aac_send_shutdown(struct aac_dev * dev) mutex_unlock(&dev->ioctl_mutex); } + fibctx = aac_fib_alloc(dev); + if (!fibctx) + return -ENOMEM; + aac_fib_init(fibctx); + cmd = (struct aac_close *) fib_data(fibctx); cmd->command = cpu_to_le32(VM_CloseAll); cmd->cid = cpu_to_le32(0xfffffffe);