From: Hante Meuleman <meuleman@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@xxxxxxxxxxxx>
Signed-off-by: Hante Meuleman <meuleman@xxxxxxxxxxxx>
Signed-off-by: Franky Lin <frankyl@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 2 ++
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 1aec434..b924ed7 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 40a37ac..4572545 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) {
--
1.7.9.5
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