diff options
| author | Christian Daudt <csd@broadcom.com> | 2016-05-11 22:06:49 (GMT) |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-06-04 14:58:52 (GMT) |
| commit | b746740147dcfe1eb635f76f0a73f7df2b3e37c0 (patch) | |
| tree | 48f15f04ee4368a31dab66db063b93060450112c | |
| parent | b88a2e80396ba463a4800c62c96e86954cb0f4f7 (diff) | |
| download | linux-b746740147dcfe1eb635f76f0a73f7df2b3e37c0.tar.xz | |
brcmfmac: Fix 'did not remove int handler' warning
brcmf_sdiod_intr_unregister call that removes both func1 and
func2 interrupt handlers only called when brcmf_ops_sdio_remove
is called for func 1 (which is the 2nd call) but sdio is expecting
it to be removed at the end of each sdio_remove call.
This is causing 'rmmod bcmrfmac' on a 4356-sdio chip to complain
with:
WARNING: driver brcmfmac did not remove its interrupt handler!
The modification makes calling brcmf_sdiod_intr_unregister multiple
times harmless by clearing the variables that track if interrupt
handlers have been installed, and then calls it on every
brcmf_ops_sdio_remove call instead of just remove for func 1.
Signed-off-by: Christian Daudt <csd@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 17 | ||||
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h | 2 |
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c index 7abcf67..c4b89d2 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c @@ -172,7 +172,7 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev) return 0; } -int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) +void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) { brcmf_dbg(SDIO, "Entering oob=%d sd=%d\n", @@ -195,6 +195,7 @@ int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) } free_irq(pdata->oob_irq_nr, &sdiodev->func[1]->dev); sdiodev->irq_en = false; + sdiodev->oob_irq_requested = false; } if (sdiodev->sd_irq_requested) { @@ -202,9 +203,8 @@ int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) sdio_release_irq(sdiodev->func[2]); sdio_release_irq(sdiodev->func[1]); sdio_release_host(sdiodev->func[1]); + sdiodev->sd_irq_requested = false; } - - return 0; } void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev, @@ -1201,12 +1201,17 @@ static void brcmf_ops_sdio_remove(struct sdio_func *func) brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device); brcmf_dbg(SDIO, "Function: %d\n", func->num); - if (func->num != 1) - return; - bus_if = dev_get_drvdata(&func->dev); if (bus_if) { sdiodev = bus_if->bus_priv.sdio; + + /* start by unregistering irqs */ + brcmf_sdiod_intr_unregister(sdiodev); + + if (func->num != 1) + return; + + /* only proceed with rest of cleanup if func 1 */ brcmf_sdiod_remove(sdiodev); dev_set_drvdata(&sdiodev->func[1]->dev, NULL); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h index c07ad25..f3da32f 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h @@ -294,7 +294,7 @@ struct sdpcmd_regs { /* Register/deregister interrupt handler. */ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev); -int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev); +void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev); /* sdio device register access interface */ u8 brcmf_sdiod_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret); |