From: Shivasharan S Date: Fri, 5 Jan 2018 13:27:41 +0000 (-0800) Subject: scsi: megaraid_sas: unload flag should be set after scsi_remove_host is called X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=15dfb9baba2c8e8d9d92186cb8012a91c0ef897a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git scsi: megaraid_sas: unload flag should be set after scsi_remove_host is called [ Upstream commit f3f7920b3910171b2999c7dc2335eb9f583e44f2 ] Issue - Driver returns DID_NO_CONNECT when unload is in progress, indicated using instance->unload flag. In case of dynamic unload of driver, this flag is set before calling scsi_remove_host(). While doing manual driver unload, user will see lots of prints for Sync Cache command with DID_NO_CONNECT status. Fix - Set the instance->unload flag after scsi_remove_host(). Allow device removal process to be completed and do not block any command before that. SCSI commands (like SYNC_CACHE) are received (as part of scsi_remove_host) by driver during unload will be submitted further down to the drives. Signed-off-by: Sumit Saxena Signed-off-by: Shivasharan S Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index e518dadc8161..4beb4dd2bee8 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -6605,7 +6605,6 @@ static void megasas_detach_one(struct pci_dev *pdev) u32 pd_seq_map_sz; instance = pci_get_drvdata(pdev); - instance->unload = 1; host = instance->host; fusion = instance->ctrl_context; @@ -6616,6 +6615,7 @@ static void megasas_detach_one(struct pci_dev *pdev) if (instance->fw_crash_state != UNAVAILABLE) megasas_free_host_crash_buffer(instance); scsi_remove_host(instance->host); + instance->unload = 1; if (megasas_wait_for_adapter_operational(instance)) goto skip_firing_dcmds;