diff options
| author | Andrey Borzenkov <arvidjaar@mail.ru> | 2009-12-22 21:38:44 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-12-28 15:55:47 -0500 |
| commit | 5b0691508aa99d309101a49b4b084dc16b3d7019 (patch) | |
| tree | 034dfb9ca2421b9895093e71dffb0970a5b59661 /drivers/net/wireless/orinoco | |
| parent | 92c6f8d849178582fc527aaf1e51dd37a74767d3 (diff) | |
orinoco: fix GFP_KERNEL in orinoco_set_key with interrupts disabled
orinoco_set_key is called from two places both with interrupts disabled
(under orinoco_lock). Use GFP_ATOMIC instead of GFP_KERNEL. Fixes following
warning:
[ 77.254109] WARNING: at /home/bor/src/linux-git/kernel/lockdep.c:2465 lockdep_trace_alloc+0x9a/0xa0()
[ 77.254109] Hardware name: PORTEGE 4000
[ 77.254109] Modules linked in: af_packet irnet ppp_generic slhc ircomm_tty ircomm binfmt_misc dm_mirror dm_region_hash dm_log dm_round_robin dm_multipath dm_mod loop nvram toshiba cryptomgr aead pcompress crypto_blkcipher michael_mic crypto_hash crypto_algapi orinoco_cs orinoco cfg80211 smsc_ircc2 pcmcia irda toshiba_acpi yenta_socket video i2c_ali1535 backlight rsrc_nonstatic ali_agp pcmcia_core psmouse output crc_ccitt i2c_core alim1535_wdt rfkill sg evdev ohci_hcd agpgart usbcore pata_ali libata reiserfs [last unloaded: scsi_wait_scan]
[ 77.254109] Pid: 2296, comm: wpa_supplicant Not tainted 2.6.32-1avb #1
[ 77.254109] Call Trace:
[ 77.254109] [<c011f0ad>] warn_slowpath_common+0x6d/0xa0
[ 77.254109] [<c014206a>] ? lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<c014206a>] ? lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<c011f0f5>] warn_slowpath_null+0x15/0x20
[ 77.254109] [<c014206a>] lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<c018d296>] __kmalloc+0x36/0x130
[ 77.254109] [<dffcb6a8>] ? orinoco_set_key+0x48/0x1c0 [orinoco]
[ 77.254109] [<dffcb6a8>] orinoco_set_key+0x48/0x1c0 [orinoco]
[ 77.254109] [<dffcb9fc>] orinoco_ioctl_set_encodeext+0x1dc/0x2d0 [orinoco]
[ 77.254109] [<c035b117>] ioctl_standard_call+0x207/0x3b0
[ 77.254109] [<dffcb820>] ? orinoco_ioctl_set_encodeext+0x0/0x2d0 [orinoco]
[ 77.254109] [<c0307f1f>] ? rtnl_lock+0xf/0x20
[ 77.254109] [<c0307f1f>] ? rtnl_lock+0xf/0x20
[ 77.254109] [<c02fb115>] ? __dev_get_by_name+0x85/0xb0
[ 77.254109] [<c035b616>] wext_handle_ioctl+0x176/0x200
[ 77.254109] [<dffcb820>] ? orinoco_ioctl_set_encodeext+0x0/0x2d0 [orinoco]
[ 77.254109] [<c030020f>] dev_ioctl+0x6af/0x730
[ 77.254109] [<c02eec65>] ? move_addr_to_kernel+0x55/0x60
[ 77.254109] [<c02eed59>] ? sys_sendto+0xe9/0x130
[ 77.254109] [<c02ed77e>] sock_ioctl+0x7e/0x250
[ 77.254109] [<c02ed700>] ? sock_ioctl+0x0/0x250
[ 77.254109] [<c019cf4c>] vfs_ioctl+0x1c/0x70
[ 77.254109] [<c019d1fa>] do_vfs_ioctl+0x6a/0x590
[ 77.254109] [<c0178e50>] ? might_fault+0x90/0xa0
[ 77.254109] [<c0178e0a>] ? might_fault+0x4a/0xa0
[ 77.254109] [<c02ef90e>] ? sys_socketcall+0x17e/0x280
[ 77.254109] [<c019d759>] sys_ioctl+0x39/0x60
[ 77.254109] [<c0102e3b>] sysenter_do_call+0x12/0x32
[ 77.254109] ---[ end trace 95ef563548d21efd ]---
Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/orinoco')
| -rw-r--r-- | drivers/net/wireless/orinoco/wext.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/wireless/orinoco/wext.c b/drivers/net/wireless/orinoco/wext.c index 7698fdd6a3a..31ca241f775 100644 --- a/drivers/net/wireless/orinoco/wext.c +++ b/drivers/net/wireless/orinoco/wext.c @@ -23,7 +23,7 @@ #define MAX_RID_LEN 1024 /* Helper routine to record keys - * Do not call from interrupt context */ + * It is called under orinoco_lock so it may not sleep */ static int orinoco_set_key(struct orinoco_private *priv, int index, enum orinoco_alg alg, const u8 *key, int key_len, const u8 *seq, int seq_len) @@ -32,14 +32,14 @@ static int orinoco_set_key(struct orinoco_private *priv, int index, kzfree(priv->keys[index].seq); if (key_len) { - priv->keys[index].key = kzalloc(key_len, GFP_KERNEL); + priv->keys[index].key = kzalloc(key_len, GFP_ATOMIC); if (!priv->keys[index].key) goto nomem; } else priv->keys[index].key = NULL; if (seq_len) { - priv->keys[index].seq = kzalloc(seq_len, GFP_KERNEL); + priv->keys[index].seq = kzalloc(seq_len, GFP_ATOMIC); if (!priv->keys[index].seq) goto free_key; } else |