Messages in this thread |  | | Date | Sun, 14 Jan 2001 16:29:11 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH] make drivers/scsi/atari_scsi.c check request_irq (240p3) |
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Rasmus Andersen wrote: > > Hi. > > The following patch makes drivers/scsi/atari_scsi.c check request_irq's > return code. It applies cleanly against 240p3 and ac9. > > Comments? > > --- linux-ac9/drivers/scsi/atari_scsi.c~ Tue Nov 28 02:57:34 2000 > +++ linux-ac9/drivers/scsi/atari_scsi.c Sun Jan 14 19:28:00 2001 > @@ -690,19 +690,27 @@ > /* This int is actually "pseudo-slow", i.e. it acts like a slow > * interrupt after having cleared the pending flag for the DMA > * interrupt. */ > - request_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr, IRQ_TYPE_SLOW, > - "SCSI NCR5380", scsi_tt_intr); > + if (!request_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr, IRQ_TYPE_SLOW, > + "SCSI NCR5380", scsi_tt_intr)) { > + printk(KERN_ERR "atari_scsi_detect: cannot allocate irq %d, aborting",IRQ_TT_MFP_SCSI); > + atari_stram_free(atari_dma_buffer); > + atari_dma_buffer = 0; > + return 0; > + }
request_irq returns zero on success, not on failure. Further, you need to return the request_irq error value back to the caller, if possible.
Jeff
-- Jeff Garzik | "You see, in this world there's two kinds of Building 1024 | people, my friend: Those with loaded guns MandrakeSoft | and those who dig. You dig." --Blondie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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