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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-29 20:07:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-29 20:07:43 -0700
commit5a4f13fad1ab5bd08dea78fc55321e429d83cddf (patch)
tree4474bf39b945b5a672e940080b17bdcbc04e1d15 /drivers
parentec9c45d456fd7f1e400c75e6c8040d1deb9d4fff (diff)
parente18ed145c7f556f1de8350c32739bf35b26df705 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: ide: memory overrun in ide_get_identity_ioctl() on big endian machines using ioctl HDIO_OBSOLETE_IDENTITY ide: fix resume for CONFIG_BLK_DEV_IDEACPI=y ide-cd: handle fragmented packet commands gracefully ide: always kill the whole request on error ide: fix ide_kill_rq() for special ide-{floppy,tape} driver requests
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/ide-acpi.c37
-rw-r--r--drivers/ide/ide-cd.c14
-rw-r--r--drivers/ide/ide-devsets.c2
-rw-r--r--drivers/ide/ide-eh.c2
-rw-r--r--drivers/ide/ide-floppy.c2
-rw-r--r--drivers/ide/ide-io.c14
-rw-r--r--drivers/ide/ide-ioctls.c3
-rw-r--r--drivers/ide/ide-pm.c30
8 files changed, 44 insertions, 60 deletions
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 77f79d26b264..c509c9916464 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -92,6 +92,11 @@ int ide_acpi_init(void)
return 0;
}
+bool ide_port_acpi(ide_hwif_t *hwif)
+{
+ return ide_noacpi == 0 && hwif->acpidata;
+}
+
/**
* ide_get_dev_handle - finds acpi_handle and PCI device.function
* @dev: device to locate
@@ -352,9 +357,6 @@ int ide_acpi_exec_tfs(ide_drive_t *drive)
unsigned long gtf_address;
unsigned long obj_loc;
- if (ide_noacpi)
- return 0;
-
DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn);
ret = do_drive_get_GTF(drive, &gtf_length, &gtf_address, &obj_loc);
@@ -389,16 +391,6 @@ void ide_acpi_get_timing(ide_hwif_t *hwif)
struct acpi_buffer output;
union acpi_object *out_obj;
- if (ide_noacpi)
- return;
-
- DEBPRINT("ENTER:\n");
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* Setting up output buffer for _GTM */
output.length = ACPI_ALLOCATE_BUFFER;
output.pointer = NULL; /* ACPI-CA sets this; save/free it later */
@@ -479,16 +471,6 @@ void ide_acpi_push_timing(ide_hwif_t *hwif)
struct ide_acpi_drive_link *master = &hwif->acpidata->master;
struct ide_acpi_drive_link *slave = &hwif->acpidata->slave;
- if (ide_noacpi)
- return;
-
- DEBPRINT("ENTER:\n");
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* Give the GTM buffer + drive Identify data to the channel via the
* _STM method: */
/* setup input parameters buffer for _STM */
@@ -527,16 +509,11 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
ide_drive_t *drive;
int i;
- if (ide_noacpi || ide_noacpi_psx)
+ if (ide_noacpi_psx)
return;
DEBPRINT("ENTER:\n");
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
@@ -616,7 +593,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
drive->name, err);
}
- if (!ide_acpionboot) {
+ if (ide_noacpi || ide_acpionboot == 0) {
DEBPRINT("ACPI methods disabled on boot\n");
return;
}
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index f0ede5953af8..6a9a769bffc1 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -592,9 +592,19 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
}
} else if (!blk_pc_request(rq)) {
ide_cd_request_sense_fixup(drive, cmd);
- /* complain if we still have data left to transfer */
+
uptodate = cmd->nleft ? 0 : 1;
- if (uptodate == 0)
+
+ /*
+ * suck out the remaining bytes from the drive in an
+ * attempt to complete the data xfer. (see BZ#13399)
+ */
+ if (!(stat & ATA_ERR) && !uptodate && thislen) {
+ ide_pio_bytes(drive, cmd, write, thislen);
+ uptodate = cmd->nleft ? 0 : 1;
+ }
+
+ if (!uptodate)
rq->cmd_flags |= REQ_FAILED;
}
goto out_end;
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
index 5bf958e5b1d5..1099bf7cf968 100644
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -183,6 +183,6 @@ ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
err = setfunc(drive, *(int *)&rq->cmd[1]);
if (err)
rq->errors = err;
- ide_complete_rq(drive, err, ide_rq_bytes(rq));
+ ide_complete_rq(drive, err, blk_rq_bytes(rq));
return ide_stopped;
}
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index 2b9141979613..e9abf2c3c335 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -149,7 +149,7 @@ static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET) {
if (err <= 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, err ? err : 0, ide_rq_bytes(rq));
+ ide_complete_rq(drive, err ? err : 0, blk_rq_bytes(rq));
}
}
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 8b3f204f7d73..fefbdfc8db06 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -293,7 +293,7 @@ out_end:
drive->failed_pc = NULL;
if (blk_fs_request(rq) == 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
+ ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
return ide_stopped;
}
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 93b7886a2d6e..d5f3c77beadd 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -112,16 +112,6 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
}
}
-/* obsolete, blk_rq_bytes() should be used instead */
-unsigned int ide_rq_bytes(struct request *rq)
-{
- if (blk_pc_request(rq))
- return blk_rq_bytes(rq);
- else
- return blk_rq_cur_sectors(rq) << 9;
-}
-EXPORT_SYMBOL_GPL(ide_rq_bytes);
-
int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
{
ide_hwif_t *hwif = drive->hwif;
@@ -152,14 +142,14 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
if ((media == ide_floppy || media == ide_tape) && drv_req) {
rq->errors = 0;
- ide_complete_rq(drive, 0, blk_rq_bytes(rq));
} else {
if (media == ide_tape)
rq->errors = IDE_DRV_ERROR_GENERAL;
else if (blk_fs_request(rq) == 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
}
+
+ ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
}
static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 82f252c3ee6e..e246d3d3fbcc 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -64,7 +64,8 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
goto out;
}
- id = kmalloc(size, GFP_KERNEL);
+ /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */
+ id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
if (id == NULL) {
rc = -ENOMEM;
goto out;
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index c14ca144cffe..ad7be2669dcb 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -10,9 +10,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
struct request_pm_state rqpm;
int ret;
- /* call ACPI _GTM only once */
- if ((drive->dn & 1) == 0 || pair == NULL)
- ide_acpi_get_timing(hwif);
+ if (ide_port_acpi(hwif)) {
+ /* call ACPI _GTM only once */
+ if ((drive->dn & 1) == 0 || pair == NULL)
+ ide_acpi_get_timing(hwif);
+ }
memset(&rqpm, 0, sizeof(rqpm));
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
@@ -26,9 +28,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
ret = blk_execute_rq(drive->queue, NULL, rq, 0);
blk_put_request(rq);
- /* call ACPI _PS3 only after both devices are suspended */
- if (ret == 0 && ((drive->dn & 1) || pair == NULL))
- ide_acpi_set_state(hwif, 0);
+ if (ret == 0 && ide_port_acpi(hwif)) {
+ /* call ACPI _PS3 only after both devices are suspended */
+ if ((drive->dn & 1) || pair == NULL)
+ ide_acpi_set_state(hwif, 0);
+ }
return ret;
}
@@ -42,13 +46,15 @@ int generic_ide_resume(struct device *dev)
struct request_pm_state rqpm;
int err;
- /* call ACPI _PS0 / _STM only once */
- if ((drive->dn & 1) == 0 || pair == NULL) {
- ide_acpi_set_state(hwif, 1);
- ide_acpi_push_timing(hwif);
- }
+ if (ide_port_acpi(hwif)) {
+ /* call ACPI _PS0 / _STM only once */
+ if ((drive->dn & 1) == 0 || pair == NULL) {
+ ide_acpi_set_state(hwif, 1);
+ ide_acpi_push_timing(hwif);
+ }
- ide_acpi_exec_tfs(drive);
+ ide_acpi_exec_tfs(drive);
+ }
memset(&rqpm, 0, sizeof(rqpm));
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);