From: Bartlomiej Zolnierkiewicz Date: Fri, 1 Feb 2008 22:09:17 +0000 (+0100) Subject: ide-cd: fix DMA error handling in cdrom_newpc_intr() X-Git-Tag: v2.6.25-rc1~1078^2~90 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eba15fba1f046d25c663d294fc919ab59cec3e9c;p=linux-2.6 ide-cd: fix DMA error handling in cdrom_newpc_intr() Make cdrom_newpc_intr() match cdrom_{read,write}_intr() w.r.t. handling DMA errors: * disable DMA before cdrom_decode_status() call * log the device name and the type of the request (read/write) Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index cbe4f1a04c..c638d057f9 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1674,6 +1674,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) if (dma) { info->dma = 0; dma_error = HWIF(drive)->ide_dma_end(drive); + if (dma_error) { + printk(KERN_ERR "%s: DMA %s error\n", drive->name, + rq_data_dir(rq) ? "write" : "read"); + ide_dma_off(drive); + } } if (cdrom_decode_status(drive, 0, &stat)) @@ -1683,11 +1688,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) * using dma, transfer is complete now */ if (dma) { - if (dma_error) { - printk(KERN_ERR "ide-cd: dma error\n"); - ide_dma_off(drive); + if (dma_error) return ide_error(drive, "dma error", stat); - } spin_lock_irqsave(&ide_lock, flags); if (__blk_end_request(rq, 0, rq->data_len))