diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2012-04-13 22:57:43 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-16 22:38:48 +0400 |
| commit | f11bbfd87dc7c7c09e6aac7cd17c980ba64d6589 (patch) | |
| tree | 6530b9da515b0171118eb58c4ce55f06d98db4a8 /drivers/net/wireless | |
| parent | 88642088b6b82dd5da21501351df1b881943b755 (diff) | |
| download | linux-f11bbfd87dc7c7c09e6aac7cd17c980ba64d6589.tar.xz | |
rtlwifi: rtl8192ce: Remove false positives for kmemleak
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 <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/pci.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 288b035a3579..81d0c9b34328 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/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 ieee80211_hw *hw) u32 bufferaddress; if (!skb) return 0; + kmemleak_not_leak(skb); entry = &rtlpci->rx_ring[rx_queue_idx].desc[i]; /*skb->dev = dev; */ diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c index c20b3c30f62e..692c8ef5ee89 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c +++ b/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 ieee80211_hw *hw, bool dl_finished) skb = dev_alloc_skb(totalpacketlen); if (!skb) return; + kmemleak_not_leak(skb); + memcpy((u8 *) skb_put(skb, totalpacketlen), &reserved_page_packet, totalpacketlen); |