From 320112bd28d3c477f6990bfe8762ccb978106a08 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 5 Nov 2007 21:42:26 +0100 Subject: [PATCH] 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 --- drivers/ide/ide-io.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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); -- 2.11.0