Mask 'ireason' variable with 0x3 so the valid interrupt reason value
is passed to cdrom_write_check_ireason() for checking.
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
---
drivers/ide/ide-cd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1820,7 +1820,7 @@ static ide_startstop_t cdrom_write_intr(
}
/* 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);
--
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