When rtl8192ce is in operation, kmemleak indicates a number of leaks, yet
when the driver is removed all are gone. These false positives happen
in two locations:
unreferenced object 0xffff880041124000 (size 9536):
comm "work_for_cpu", pid 9295, jiffies 4295037203 (age 20596.320s)
hex dump (first 32 bytes):
33 00 00 01 01 6d 00 00 00 00 b1 0e 21 0b 00 00 3....m......!...
01 01 6d 00 00 00 00 8b 20 c0 e9 00 00 01 01 6d ..m..... ......m
backtrace:
[<ffffffff8137a1b1>] kmemleak_alloc+0x21/0x50
[<ffffffff8138d01f>] kmalloc_large_node+0x9a/0xa6
[<ffffffff811335a5>] __kmalloc_node_track_caller+0x175/0x3b0
[<ffffffff812ddfe3>] __alloc_skb+0x73/0x230
[<ffffffff812de1b8>] dev_alloc_skb+0x18/0x30
[<ffffffffa091a3b7>] rtl_pci_probe+0x10e0/0x17d2 [rtlwifi]
-- snip --
unreferenced object 0xffff8800b4d3f600 (size 256):
comm "kworker/u:2", pid 13221, jiffies 4297830173 (age 9424.568s)
hex dump (first 32 bytes):
1c d6 45 b1 00 88 ff ff 1c d6 45 b1 00 88 ff ff ..E.......E.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8137a1b1>] kmemleak_alloc+0x21/0x50
[<ffffffff81130f43>] kmem_cache_alloc_node+0x153/0x270
[<ffffffff812ddfb6>] __alloc_skb+0x46/0x230
[<ffffffff812de1b8>] dev_alloc_skb+0x18/0x30
[<ffffffffa093264a>] rtl92c_set_fw_rsvdpagepkt+0x22a/0x5c0 [rtl8192c_common]
-- snip --
Signed-off-by: Larry Finger <[email protected]>
---
John,
Another patch for 3.5.
Larry
---
Index: wireless-testing-new/drivers/net/wireless/rtlwifi/pci.c
===================================================================
--- wireless-testing-new.orig/drivers/net/wireless/rtlwifi/pci.c
+++ wireless-testing-new/drivers/net/wireless/rtlwifi/pci.c
@@ -34,6 +34,7 @@
#include "ps.h"
#include "efuse.h"
#include <linux/export.h>
+#include <linux/kmemleak.h>
static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
PCI_VENDOR_ID_INTEL,
@@ -1099,6 +1100,7 @@ static int _rtl_pci_init_rx_ring(struct
u32 bufferaddress;
if (!skb)
return 0;
+ kmemleak_not_leak(skb);
entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
/*skb->dev = dev; */
Index: wireless-testing-new/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
===================================================================
--- wireless-testing-new.orig/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
+++ wireless-testing-new/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
@@ -34,6 +34,7 @@
#include "../rtl8192ce/def.h"
#include "fw_common.h"
#include <linux/export.h>
+#include <linux/kmemleak.h>
static void _rtl92c_enable_fw_download(struct ieee80211_hw *hw, bool enable)
{
@@ -776,6 +777,8 @@ void rtl92c_set_fw_rsvdpagepkt(struct ie
skb = dev_alloc_skb(totalpacketlen);
if (!skb)
return;
+ kmemleak_not_leak(skb);
+
memcpy((u8 *) skb_put(skb, totalpacketlen),
&reserved_page_packet, totalpacketlen);