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ide-cd: add missing 'ireason' masking to cdrom_write_intr()

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Mask 'ireason' variable with 0x3 so the valid interrupt reason value
is passed to cdrom_write_check_ireason() for checking.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-12-24 15:23:43 +01:00
parent 35379c071a
commit 31a7119165
1 changed files with 1 additions and 1 deletions
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2
drivers/ide/ide-cd.c
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@ -1826,7 +1826,7 @@ static ide_startstop_t cdrom_write_intr(ide_drive_t *drive)
}
/* Read the interrupt reason and the transfer length. */
ireason = HWIF(drive)->INB(IDE_IREASON_REG);
ireason = HWIF(drive)->INB(IDE_IREASON_REG) & 0x3;
lowcyl = HWIF(drive)->INB(IDE_BCOUNTL_REG);
highcyl = HWIF(drive)->INB(IDE_BCOUNTH_REG);