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| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-11-05 21:42:26 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-11-05 21:42:26 +0100 |
| commit | 320112bd28d3c477f6990bfe8762ccb978106a08 (patch) | |
| tree | b0b4236d3284a73c6986dc3dfdbf26eac1dbaf7b /drivers | |
| parent | ide/Kconfig: fix BLK_DEV_OFFBOARD dependencies (diff) | |
| download | linux-dev-320112bd28d3c477f6990bfe8762ccb978106a08.tar.xz linux-dev-320112bd28d3c477f6990bfe8762ccb978106a08.zip | |
ide: check rq->cmd_type in drive_cmd_intr()
drive_cmd_intr() is used by both REQ_TYPE_ATA_CMD and REQ_TYPE_ATA_TASK
but commands using PIO-in protocol are valid only for REQ_TYPE_ATA_CMD
(&args[4] in case of REQ_TYPE_ATA_TASK points to a value for IDE_LCYL_REG
register instead of the data buffer). This fix allows REQ_TYPE_ATA_TASK
commands to use non-zero values for IDE_SECTOR_REG (args[3]).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide-io.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index c89f0d3058e9..e04967ac25b6 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -654,7 +654,8 @@ static ide_startstop_t drive_cmd_intr (ide_drive_t *drive) int retries = 10; local_irq_enable_in_hardirq(); - if ((stat & DRQ_STAT) && args && args[3]) { + if (rq->cmd_type == REQ_TYPE_ATA_CMD && + (stat & DRQ_STAT) && args && args[3]) { u8 io_32bit = drive->io_32bit; drive->io_32bit = 0; hwif->ata_input_data(drive, &args[4], args[3] * SECTOR_WORDS); |