The patch titled
fs/partitions/check: add sysfs error handling
has been added to the -mm tree. Its filename is
fs-partitions-check-add-sysfs-error-handling.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: fs/partitions/check: add sysfs error handling
From: Jeff Garzik <jeff@xxxxxxxxxx>
Handle errors thrown in disk_sysfs_symlinks(), and propagate back to
caller.
The callers and associated functions don't do a real good job of handling
kobject errors anyway (add_partition, register_disk, rescan_partitions), so
this should do until something better comes along.
Signed-off-by: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/partitions/check.c | 50 +++++++++++++++++++++++++++++++++-------
1 files changed, 42 insertions(+), 8 deletions(-)
diff -puN fs/partitions/check.c~fs-partitions-check-add-sysfs-error-handling fs/partitions/check.c
--- a/fs/partitions/check.c~fs-partitions-check-add-sysfs-error-handling
+++ a/fs/partitions/check.c
@@ -376,18 +376,48 @@ static char *make_block_name(struct gend
return name;
}
-static void disk_sysfs_symlinks(struct gendisk *disk)
+static int disk_sysfs_symlinks(struct gendisk *disk)
{
struct device *target = get_device(disk->driverfs_dev);
+ int err;
+ char *disk_name = NULL;
+
if (target) {
- char *disk_name = make_block_name(disk);
- sysfs_create_link(&disk->kobj,&target->kobj,"device");
- if (disk_name) {
- sysfs_create_link(&target->kobj,&disk->kobj,disk_name);
- kfree(disk_name);
+ disk_name = make_block_name(disk);
+ if (!disk_name) {
+ err = -ENOMEM;
+ goto err_out;
}
+
+ err = sysfs_create_link(&disk->kobj, &target->kobj, "device");
+ if (err)
+ goto err_out_disk_name;
+
+ err = sysfs_create_link(&target->kobj, &disk->kobj, disk_name);
+ if (err)
+ goto err_out_dev_link;
}
- sysfs_create_link(&disk->kobj, &block_subsys.kset.kobj, "subsystem");
+
+ err = sysfs_create_link(&disk->kobj, &block_subsys.kset.kobj,
+ "subsystem");
+ if (err)
+ goto err_out_disk_name_lnk;
+
+ kfree(disk_name);
+
+ return 0;
+
+err_out_disk_name_lnk:
+ if (target) {
+ sysfs_remove_link(&target->kobj, disk_name);
+err_out_dev_link:
+ sysfs_remove_link(&disk->kobj, "device");
+err_out_disk_name:
+ kfree(disk_name);
+err_out:
+ put_device(target);
+ }
+ return err;
}
/* Not exported, helper to add_disk(). */
@@ -406,7 +436,11 @@ void register_disk(struct gendisk *disk)
*s = '!';
if ((err = kobject_add(&disk->kobj)))
return;
- disk_sysfs_symlinks(disk);
+ err = disk_sysfs_symlinks(disk);
+ if (err) {
+ kobject_del(&disk->kobj);
+ return;
+ }
disk_sysfs_add_subdirs(disk);
/* No minors to use for partitions */
_
Patches currently in -mm which might be from jeff@xxxxxxxxxx are
kauditd_thread-warning-fix.patch
fix-up-a-multitude-of-acpi-compiler-warnings-on-x86_64.patch
drivers-base-bus-remove-indentation-level.patch
fs-partitions-check-add-sysfs-error-handling.patch
git-libata-all.patch
pci_module_init-conversion-for-pata_pdc2027x.patch
libata-return-sense-data-in-hdio_drive_cmd-ioctl.patch
libata-return-sense-data-in-hdio_drive_cmd-ioctl-tidy.patch
via-pata-controller-xfer-fixes.patch
ahci-ati-sb600-sata-support-for-various-modes.patch
git-mtd.patch
update-smc91x-driver-with-arm-versatile-board-info.patch
b44-fix-eeprom-endianess-issue.patch
forcedeth-hardirq-lockdep-warning.patch
forcedeth-power-management-support.patch
forcedeth-power-management-support-tidy.patch
remove-unnecessary-check-in-drivers-net-depcac.patch
8139too-force-media-setting-fix.patch
tulip-fix-shutdown-dma-irq-race.patch
r8169-driver-corega-support-patch.patch
git-pciseg.patch
git-gccbug.patch
-
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