diff options
| author | Elias Oltmanns | 2008-10-13 21:39:45 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz | 2008-10-13 21:39:45 +0200 |
| commit | e415e495f8294e536e09e6a15fba897cce4c0748 (patch) | |
| tree | 7a1a9c82d1b0faedf2454a76027df6e1fff4a8fb /drivers/ide/ide-probe.c | |
| parent | ide-disk: move /proc handling to ide-disk_proc.c (take 3) (diff) | |
| download | kernel-qcow2-linux-e415e495f8294e536e09e6a15fba897cce4c0748.tar.gz kernel-qcow2-linux-e415e495f8294e536e09e6a15fba897cce4c0748.tar.xz kernel-qcow2-linux-e415e495f8294e536e09e6a15fba897cce4c0748.zip | |
ide: Two fixes regarding memory allocation
In function ide_devset_execute() we should use __GFP_WAIT rather than
GFP_KERNEL. Also, the allocation cannot possibly fail at that point.
More importantly, there is a potential memory leak in the device probing
code. The infrastructure seems rather complex and I hope I haven't messed
anything up by trying to fix this.
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
[bart: remove superfluous ide_lock taking]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-probe.c')
| -rw-r--r-- | drivers/ide/ide-probe.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index bce427ee08aa..de8edd306c79 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -958,9 +958,9 @@ static void ide_add_drive_to_hwgroup(ide_drive_t *drive) * - allocate the block device queue * - link drive into the hwgroup */ -static void ide_port_setup_devices(ide_hwif_t *hwif) +static int ide_port_setup_devices(ide_hwif_t *hwif) { - int i; + int i, j = 0; mutex_lock(&ide_cfg_mtx); for (i = 0; i < MAX_DRIVES; i++) { @@ -972,12 +972,19 @@ static void ide_port_setup_devices(ide_hwif_t *hwif) if (ide_init_queue(drive)) { printk(KERN_ERR "ide: failed to init %s\n", drive->name); + kfree(drive->id); + drive->id = NULL; + drive->dev_flags &= ~IDE_DFLAG_PRESENT; continue; } + j++; + ide_add_drive_to_hwgroup(drive); } mutex_unlock(&ide_cfg_mtx); + + return j; } static ide_hwif_t *ide_ports[MAX_HWIFS]; @@ -1663,10 +1670,13 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, continue; } - j++; - if (hwif->present) - ide_port_setup_devices(hwif); + if (ide_port_setup_devices(hwif) == 0) { + hwif->present = 0; + continue; + } + + j++; ide_acpi_init(hwif); |