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ath6kl: deinitialise wiphy on error

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This fixes the following panic observed on card removal.

BUG: unable to handle kernel paging request at f86e22ac
EIP is at wiphy_update_regulatory+0x252/0x590 [cfg80211]
Call Trace:
 [<f92fb9e5>] set_regdom+0x165/0x600 [cfg80211]
 [<c02057ba>] ? __kmalloc+0x10a/0x190
 [<c0366557>] ? nla_parse+0xb7/0xd0
 [<f9300b92>] ? T.1400+0x12/0x20 [cfg80211]
 [<f9300c84>] nl80211_set_reg+0xe4/0x270 [cfg80211]
 [<f92fe560>] ? nl80211_pre_doit+0x0/0x160 [cfg80211]
 [<c050bdeb>] genl_rcv_msg+0x23b/0x280
 [<c050bbb0>] ? genl_rcv_msg+0x0/0x280
 [<c050ab76>] netlink_rcv_skb+0x86/0xb0
 [<c050bb80>] ? genl_rcv+0x0/0x30
 [<c050bb9c>] genl_rcv+0x1c/0x30

Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Vivek Natarajan 2011-09-15 20:30:43 +05:30 committed by Kalle Valo
parent 151411e88f
commit 9df337a104
1 changed files with 5 additions and 2 deletions
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7
drivers/net/wireless/ath/ath6kl/sdio.c
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@ -25,6 +25,7 @@
#include "hif-ops.h"
#include "target.h"
#include "debug.h"
#include "cfg80211.h"
struct ath6kl_sdio {
struct sdio_func *func;
@ -816,7 +817,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
ath6kl_err("Failed to enable 4-bit async irq mode %d\n",
ret);
sdio_release_host(func);
goto err_dma;
goto err_cfg80211;
}
ath6kl_dbg(ATH6KL_DBG_TRC, "4-bit async irq mode enabled\n");
@ -829,7 +830,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
ret = ath6kl_sdio_power_on(ar_sdio);
if (ret)
goto err_dma;
goto err_cfg80211;
sdio_claim_host(func);
@ -853,6 +854,8 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
err_off:
ath6kl_sdio_power_off(ar_sdio);
err_cfg80211:
ath6kl_cfg80211_deinit(ar_sdio->ar);
err_dma:
kfree(ar_sdio->dma_buffer);
err_hif: