The patch titled
edd: fix possible memory leak in edd_init() error path
has been added to the -mm tree. Its filename is
edd-fix-possible-memory-leak-in-edd_init-error-path.patch
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------------------------------------------------------
Subject: edd: fix possible memory leak in edd_init() error path
From: Axel Lin <axel.lin@xxxxxxxxx>
The error may happen at any iteration of the for loop, this patch properly
unregisters already registed edd_devices in error path.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx>
Cc: Stephen Hemminger <shemminger@xxxxxxxxxx>
Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/firmware/edd.c | 23 ++++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
diff -puN drivers/firmware/edd.c~edd-fix-possible-memory-leak-in-edd_init-error-path drivers/firmware/edd.c
--- a/drivers/firmware/edd.c~edd-fix-possible-memory-leak-in-edd_init-error-path
+++ a/drivers/firmware/edd.c
@@ -744,7 +744,7 @@ static inline int edd_num_devices(void)
static int __init
edd_init(void)
{
- unsigned int i;
+ int i;
int rc=0;
struct edd_device *edev;
@@ -760,21 +760,30 @@ edd_init(void)
if (!edd_kset)
return -ENOMEM;
- for (i = 0; i < edd_num_devices() && !rc; i++) {
+ for (i = 0; i < edd_num_devices(); i++) {
edev = kzalloc(sizeof (*edev), GFP_KERNEL);
- if (!edev)
- return -ENOMEM;
+ if (!edev) {
+ rc = -ENOMEM;
+ goto out;
+ }
rc = edd_device_register(edev, i);
if (rc) {
kfree(edev);
- break;
+ goto out;
}
edd_devices[i] = edev;
}
- if (rc)
- kset_unregister(edd_kset);
+ return 0;
+
+out:
+ while (--i >= 0) {
+ edev = edd_devices[i];
+ if (edev)
+ edd_device_unregister(edev);
+ }
+ kset_unregister(edd_kset);
return rc;
}
_
Patches currently in -mm which might be from axel.lin@xxxxxxxxx are
linux-next.patch
hp-wmi-return-enodev-if-bios-does-not-export-any-supported-hp-wmi-guid.patch
fujitsu-laptop-remove-unnecessary-input_free_device-calls.patch
compal-laptop-fujitsu-laptop-msi-laptop-make-dmi_check_cb-to-return-1-instead-of-0.patch
asus_acpi-fix-a-memory-leak-in-asus_hotk_get_info.patch
asus_acpi-fix-coding-style-to-improve-readability.patch
acerhdf-make-needlessly-global-symbols-static.patch
classmate-laptop-make-needlessly-global-symbols-static.patch
fujitsu-laptop-make-needlessly-global-symbols-static.patch
msi-laptop-make-struct-rfkill_ops-const.patch
asus-laptop-fix-incorrect-return-value-for-write_acpi_int_ret-if-handle-is-null.patch
asus-laptop-return-proper-error-for-store_ledd-if-write_acpi_int-fail.patch
acerhdf-fix-resource-reclaim-in-error-path.patch
toshiba_acpi-make-remove_device-and-add_device-void.patch
toshiba_acpi-rename-add_device-and-remove_device-to-create_toshiba_proc_entries-and-remove_toshiba_proc_entries.patch
hp-wmi-add-return-value-checking-for-input_allocate_device.patch
acer-wmi-fix-memory-leaks-in-wmid_set_capabilities-and-get_wmid_devices.patch
acer-wmi-fix-memory-leaks-in-wmab_execute-error-path.patch
acer-wmi-remove-non-used-acer_quirks-struct-definition.patch
asus-laptop-fix-wapf-wlan_status-and-bluetooth_status-module_param-permissions.patch
eeepc-laptop-fix-hotplug_disabled-module_param-permissions.patch
intel_menlow-fix-memory-leaks-in-error-path-fix.patch
drivers-video-backlight-s6e63m0c-set-permissions-on-gamma_table-file-to-0444.patch
edd-fix-possible-memory-leak-in-edd_init-error-path.patch
edd-fix-possible-memory-leak-in-edd_init-error-path-fix.patch
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