brcmfmac: have sdio return -EIO when device communication is not possible

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The bus interface functions txctl and rxctl may be used while the device
can not be accessed, eg. upon driver .remove() callback. This patch will
immediately return -EIO when this is the case which speeds up the module
unload.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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Arend van Spriel 2015-06-11 00:12:20 +02:00 • committed by Kalle Valo

parent 1f0dc59a6d

commit 5768f31e4e

2 changed files with 7 additions and 0 deletions

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1

drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c

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6

drivers/net/wireless/brcm80211/brcmfmac/sdio.c

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