From: Bartlomiej Zolnierkiewicz Date: Fri, 1 Feb 2008 22:09:17 +0000 (+0100) Subject: ide-cd: fix "missing data" handling in cdrom_pc_intr() X-Git-Tag: v2.6.25-rc1~1078^2~91 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1071e628bc769174c3e2df7827a2a8ad05aea67;p=linux-2.6 ide-cd: fix "missing data" handling in cdrom_pc_intr() If drive still wants to transfer the data we need to pad the transfer instead of just finishing the request. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 75539fd082..cbe4f1a04c 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1500,9 +1500,11 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive) if (xferfunc) { if (!rq->data) { + printk(KERN_ERR "%s: confused, missing data\n", + drive->name); blk_dump_rq_flags(rq, write ? "cdrom_pc_intr, write" : "cdrom_pc_intr, read"); - goto confused; + goto pad; } /* Transfer the data. */ xferfunc(drive, rq->data, thislen); @@ -1515,7 +1517,6 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive) if (write && blk_sense_request(rq)) rq->sense_len += thislen; } else { -confused: printk (KERN_ERR "%s: cdrom_pc_intr: The drive " "appears confused (ireason = 0x%02x). " "Trying to recover by ending request.\n", @@ -1524,7 +1525,7 @@ confused: cdrom_end_request(drive, 0); return ide_stopped; } - +pad: /* * If we haven't moved enough data to satisfy the drive, * add some padding.