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brcmfmac: sdio unload fix.

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on sdio remove the bus_if should be configured for close, so
new data from higher layers will be blocked. Also the access
to bus_if in the watchdog should be checked for null pointer
access on sdio remove.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hante Meuleman 2012-11-14 18:46:19 -08:00 committed by John W. Linville
parent 37ac5780e0
commit 2def5c10d2
2 changed files with 3 additions and 1 deletions
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2
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
View File

@ -535,6 +535,8 @@ EXPORT_SYMBOL(brcmf_sdio_probe);
int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev)
{
sdiodev->bus_if->state = BRCMF_BUS_DOWN;
if (sdiodev->bus) {
brcmf_sdbrcm_disconnect(sdiodev->bus);
sdiodev->bus = NULL;

2
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
View File

@ -3576,7 +3576,7 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
}
#ifdef DEBUG
/* Poll for console output periodically */
if (bus_if->state == BRCMF_BUS_DATA &&
if (bus_if && bus_if->state == BRCMF_BUS_DATA &&
bus->console_interval != 0) {
bus->console.count += BRCMF_WD_POLL_MS;
if (bus->console.count >= bus->console_interval) {