block,scsi: fixup blk_get_request dead queue scenarios

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / drivers / scsi / device_handler / scsi_dh_emc.c

diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 6f07f7fe3aa11e3603bad3858a817a0c485f26e0..84765384c47ca4486caf3a7e4366521af193be3f 100644 (file)
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -275,7 +275,7 @@ static struct request *get_req(struct scsi_device *sdev, int cmd,
 
        rq = blk_get_request(sdev->request_queue,
                        (cmd != INQUIRY) ? WRITE : READ, GFP_NOIO);
-       if (!rq) {
+       if (IS_ERR(rq)) {
                sdev_printk(KERN_INFO, sdev, "get_req: blk_get_request failed");
                return NULL;
        }