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| author | Mike Christie <michaelc@cs.wisc.edu> | 2011-06-24 15:11:53 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-06-29 16:43:06 -0500 |
| commit | f457a46f179df41b0f6d80dee33b6e629945f276 (patch) | |
| tree | acbeac8630b898610fe71295f11cbc71f956b8ba /drivers/firmware | |
| parent | 9d04516310aaef3970c642a54531a52123001178 (diff) | |
| download | linux-f457a46f179df41b0f6d80dee33b6e629945f276.tar.gz | |
[SCSI] iscsi_ibft, be2iscsi, iscsi_boot: fix boot kobj data lifetime management
be2iscsi passes the boot functions its phba object which is allocated in the shost, but iscsi_ibft passes in a object allocated for each item to display. The problem is that iscsi_boot_sysfs was managing the lifetime of the object passed in and doing a kfree on release. This causes a double free for be2iscsi which frees the shost in its pci_remove. This patch fixes the problem by adding a release callback which the drivers can call kfree or a put() type of function (needed for be2iscsi which will do a get/put on the shost). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/iscsi_ibft.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c index ce33f4626957..c811cb107904 100644 --- a/drivers/firmware/iscsi_ibft.c +++ b/drivers/firmware/iscsi_ibft.c @@ -566,6 +566,11 @@ static mode_t __init ibft_check_initiator_for(void *data, int type) return rc; } +static void ibft_kobj_release(void *data) +{ + kfree(data); +} + /* * Helper function for ibft_register_kobjects. */ @@ -595,7 +600,8 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header, boot_kobj = iscsi_boot_create_initiator(boot_kset, hdr->index, ibft_kobj, ibft_attr_show_initiator, - ibft_check_initiator_for); + ibft_check_initiator_for, + ibft_kobj_release); if (!boot_kobj) { rc = -ENOMEM; goto free_ibft_obj; @@ -610,7 +616,8 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header, boot_kobj = iscsi_boot_create_ethernet(boot_kset, hdr->index, ibft_kobj, ibft_attr_show_nic, - ibft_check_nic_for); + ibft_check_nic_for, + ibft_kobj_release); if (!boot_kobj) { rc = -ENOMEM; goto free_ibft_obj; @@ -625,7 +632,8 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header, boot_kobj = iscsi_boot_create_target(boot_kset, hdr->index, ibft_kobj, ibft_attr_show_target, - ibft_check_tgt_for); + ibft_check_tgt_for, + ibft_kobj_release); if (!boot_kobj) { rc = -ENOMEM; goto free_ibft_obj; |