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| author | Michal Malý <madcatxster@gmail.com> | 2012-03-31 11:35:05 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-04-03 04:11:12 +0200 |
| commit | 6a2e176b2d6ae6bb528c0c1a50a6332e176cda12 (patch) | |
| tree | 14799f485bbbf3bc0e32f744b430d0ebb2421088 /drivers/hid | |
| parent | 8577dbf9d6eb07213caefb49e2017c177c5f023d (diff) | |
| download | linux-6a2e176b2d6ae6bb528c0c1a50a6332e176cda12.tar.gz linux-6a2e176b2d6ae6bb528c0c1a50a6332e176cda12.tar.xz linux-6a2e176b2d6ae6bb528c0c1a50a6332e176cda12.zip | |
HID: lg4ff: Remove sysfs iface before deallocating memory
This patch fixes a possible race condition caused by the sysfs
interface being removed after the memory used by the interface
was already kfree'd.
Signed-off-by: Michal Malý <madcatsxter@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-lg.h | 2 | ||||
| -rw-r--r-- | drivers/hid/hid-lg4ff.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h index 500457b67b21..d64cf8d2751e 100644 --- a/drivers/hid/hid-lg.h +++ b/drivers/hid/hid-lg.h @@ -1,8 +1,6 @@ #ifndef __HID_LG_H #define __HID_LG_H -#include <linux/spinlock.h> - struct lg_drv_data { unsigned long quirks; void *device_props; /* Device specific properties */ diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 6ecc9e220440..11452920a6c3 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -466,6 +466,9 @@ int lg4ff_deinit(struct hid_device *hid) bool found = 0; struct lg4ff_device_entry *entry; struct list_head *h, *g; + + device_remove_file(&hid->dev, &dev_attr_range); + list_for_each_safe(h, g, &device_list.list) { entry = list_entry(h, struct lg4ff_device_entry, list); if (strcmp(entry->device_id, (&hid->dev)->kobj.name) == 0) { @@ -478,11 +481,10 @@ int lg4ff_deinit(struct hid_device *hid) } if (!found) { - dbg_hid("Device entry not found!\n"); + hid_err(hid, "Device entry not found!\n"); return -1; } - device_remove_file(&hid->dev, &dev_attr_range); dbg_hid("Device successfully unregistered\n"); return 0; } |