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authorHante Meuleman <meuleman@broadcom.com>2012-11-14 18:46:19 -0800
committerJohn W. Linville <linville@tuxdriver.com>2012-11-16 14:29:00 -0500
commit2def5c10d2f8f81c8089b2c1b63fdc278e7d86f0 (patch)
tree598428a6153ef0b21b7b85849f60fb380ecc013a /drivers/net/wireless/brcm80211/brcmfmac
parent37ac5780e08e4e3ce67e8355e52d71324e9c11cd (diff)
brcmfmac: sdio unload fix.
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>
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c2
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c2
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 1aec4342875..b924ed7d3e0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -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;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 40a37ac0497..45725454714 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -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) {