Kernel errors during boot when loading ath wireless modules

Binary package hint: linux-restricted-modules

Hardy Heron i386
Kernel 2.6.24-2-generic
Macbook Core Duo

I get the following errors when booting (although the card seems to work).

[ 76.598511] ath_hal: module license 'Proprietary' taints kernel.
[ 76.623794] ath_hal: 0.9.18.0 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
[ 76.624228] sysctl table check failed: /dev/ath .7.9 Unknown sysctl binary path
[ 76.624547] Pid: 3891, comm: modprobe Tainted: P 2.6.24-2-generic #1
[ 76.624653] [<c0146515>] set_fail+0x45/0x60
[ 76.624760] [<c01467c6>] sysctl_check_table+0x296/0x5b0
[ 76.624862] [<c0134c58>] sysctl_head_finish+0x18/0x30
[ 76.624966] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.625068] [<c01337d9>] sysctl_set_parent+0x19/0x30
[ 76.625174] [<c0135000>] register_sysctl_table+0x50/0xa0
[ 76.625277] [<f89fa077>] init_ath_hal+0x77/0x8d [ath_hal]
[ 76.625388] [<c0151296>] sys_init_module+0x126/0x19c0
[ 76.625502] [<c0184ca0>] __kmalloc+0x0/0x110
[ 76.625606] [<c01053a2>] sysenter_past_esp+0x6b/0xa9
[ 76.625714] =======================
[ 76.625775] sysctl table check failed: /dev/ath/hal .7.9.-2 Unknown sysctl binary path
[ 76.626180] Pid: 3891, comm: modprobe Tainted: P 2.6.24-2-generic #1
[ 76.626246] [<c0146515>] set_fail+0x45/0x60
[ 76.626347] [<c01467c6>] sysctl_check_table+0x296/0x5b0
[ 76.626451] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.626557] [<c0134c58>] sysctl_head_finish+0x18/0x30
[ 76.626661] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.626763] [<c01337d9>] sysctl_set_parent+0x19/0x30
[ 76.626867] [<c0135000>] register_sysctl_table+0x50/0xa0
[ 76.626970] [<f89fa077>] init_ath_hal+0x77/0x8d [ath_hal]
[ 76.627080] [<c0151296>] sys_init_module+0x126/0x19c0
[ 76.627192] [<c0184ca0>] __kmalloc+0x0/0x110
[ 76.627296] [<c01053a2>] sysenter_past_esp+0x6b/0xa9
[ 76.627402] =======================
[ 76.627463] sysctl table check failed: /dev/ath/hal/dma_beacon_response_time .7.9.-2.-2 Unknown sysctl binary path
[ 76.627946] Pid: 3891, comm: modprobe Tainted: P 2.6.24-2-generic #1
[ 76.628011] [<c0146515>] set_fail+0x45/0x60
[ 76.628112] [<c01467c6>] sysctl_check_table+0x296/0x5b0
[ 76.628216] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.628321] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.628423] [<c0134c58>] sysctl_head_finish+0x18/0x30
[ 76.628527] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.628628] [<c01337d9>] sysctl_set_parent+0x19/0x30
[ 76.628732] [<c0135000>] register_sysctl_table+0x50/0xa0
[ 76.628835] [<f89fa077>] init_ath_hal+0x77/0x8d [ath_hal]
[ 76.628943] [<c0151296>] sys_init_module+0x126/0x19c0
[ 76.629054] [<c0184ca0>] __kmalloc+0x0/0x110
[ 76.629159] [<c01053a2>] sysenter_past_esp+0x6b/0xa9
[ 76.629265] =======================
[ 76.629325] sysctl table check failed: /dev/ath/hal/sw_beacon_response_time .7.9.-2.-2 Unknown sysctl binary path
[ 76.629807] Pid: 3891, comm: modprobe Tainted: P 2.6.24-2-generic #1
[ 76.629901] [<c0146515>] set_fail+0x45/0x60
[ 76.630003] [<c01467c6>] sysctl_check_table+0x296/0x5b0
[ 76.630108] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.630212] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.630314] [<c0134c58>] sysctl_head_finish+0x18/0x30
[ 76.630418] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.630520] [<c01337d9>] sysctl_set_parent+0x19/0x30
[ 76.630624] [<c0135000>] register_sysctl_table+0x50/0xa0
[ 76.630727] [<f89fa077>] init_ath_hal+0x77/0x8d [ath_hal]
[ 76.630836] [<c0151296>] sys_init_module+0x126/0x19c0
[ 76.630949] [<c0184ca0>] __kmalloc+0x0/0x110
[ 76.631053] [<c01053a2>] sysenter_past_esp+0x6b/0xa9
[ 76.631159] =======================
[ 76.631219] sysctl table check failed: /dev/ath/hal/swba_backoff .7.9.-2.-2 Unknown sysctl binary path
[ 76.631699] Pid: 3891, comm: modprobe Tainted: P 2.6.24-2-generic #1
[ 76.631765] [<c0146515>] set_fail+0x45/0x60
[ 76.631866] [<c01467c6>] sysctl_check_table+0x296/0x5b0
[ 76.631970] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.632074] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.632176] [<c0134c58>] sysctl_head_finish+0x18/0x30
[ 76.632280] [<c01467da>] sysctl_check_table+0x2aa/0x5b0
[ 76.632382] [<c01337d9>] sysctl_set_parent+0x19/0x30
[ 76.632486] [<c0135000>] register_sysctl_table+0x50/0xa0
[ 76.632589] [<f89fa077>] init_ath_hal+0x77/0x8d [ath_hal]
[ 76.632696] [<c0151296>] sys_init_module+0x126/0x19c0
[ 76.632808] [<c0184ca0>] __kmalloc+0x0/0x110
[ 76.632912] [<c01053a2>] sysenter_past_esp+0x6b/0xa9
[ 76.633018] =======================