From: Bart Van Assche <bart.vanassche@xxxxxxx> [ Upstream commit a44c9d36509c83cf64f33b93f6ab2e63822c01eb ] Since scsi_get_device_flags_keyed() callers do not check whether or not the returned value is an error code, change that function such that it returns a flags value even if the 'key' argument is invalid. Note: since commit 28a0bc4120d3 ("scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP") bit 31 is a valid device information flag so checking whether bit 31 is set in the return value is not sufficient to tell the difference between an error code and a flags value. Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Hannes Reinecke <hare@xxxxxxxx> Cc: Johannes Thumshirn <jthumshirn@xxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> --- drivers/scsi/scsi_devinfo.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index b19b00adacb2..42f0a1a6f689 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -595,17 +595,12 @@ int scsi_get_device_flags_keyed(struct scsi_device *sdev, int key) { struct scsi_dev_info_list *devinfo; - int err; devinfo = scsi_dev_info_list_find(vendor, model, key); if (!IS_ERR(devinfo)) return devinfo->flags; - err = PTR_ERR(devinfo); - if (err != -ENOENT) - return err; - - /* nothing found, return nothing */ + /* key or device not found: return nothing */ if (key != SCSI_DEVINFO_GLOBAL) return 0; -- 2.14.1