On 10/31/2013 03:50 PM, Joe Lawrence wrote: > The blk_get_request function may fail in low-memory conditions or during > device removal (even if __GFP_WAIT is set). To distinguish between these > errors, modify the blk_get_request call stack to return the appropriate > ERR_PTR. Verify that all callers check the return status and consider > IS_ERR instead of a simple NULL pointer check. > > Signed-off-by: Joe Lawrence <joe.lawre...@stratus.com> > --- <> > diff --git a/drivers/scsi/osd/osd_initiator.c > b/drivers/scsi/osd/osd_initiator.c > index aa66361ed44b..0250efda647b 100644 > --- a/drivers/scsi/osd/osd_initiator.c > +++ b/drivers/scsi/osd/osd_initiator.c > @@ -1567,8 +1567,8 @@ static struct request *_make_request(struct > request_queue *q, bool has_write, > struct request *req; > > req = blk_get_request(q, has_write ? WRITE : READ, flags); > - if (unlikely(!req)) > - return ERR_PTR(-ENOMEM); > + if (unlikely(IS_ERR(req)))
Just a nit IS_ERR already has an unlikely so it can be dropped here. (No bigy) ACK-by: Boaz Harrosh <bharr...@panasas.com> > + return req; > > return req; > } <> Thanks Boaz -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
