44 lines
1.8 KiB
Diff
44 lines
1.8 KiB
Diff
From: Hante Meuleman <meuleman@broadcom.com>
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Date: Fri, 6 Mar 2015 18:40:38 +0100
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Subject: [PATCH] brcmfmac: Fix oops when SDIO device is removed.
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On removal of SDIO card both functions of card will be getting
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a remove call. When the first is hanging in ctrl frame xmit then
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the second will cause oops. This patch fixes the xmit ctrl
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handling in case of serious errors and also limits the handling
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for remove to function 1 only.
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Reviewed-by: Arend Van Spriel <arend@broadcom.com>
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Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
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Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
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Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
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Signed-off-by: Arend van Spriel <arend@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
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@@ -1194,7 +1194,7 @@ static void brcmf_ops_sdio_remove(struct
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brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
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brcmf_dbg(SDIO, "Function: %d\n", func->num);
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- if (func->num != 1 && func->num != 2)
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+ if (func->num != 1)
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return;
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bus_if = dev_get_drvdata(&func->dev);
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--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
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@@ -2740,6 +2740,11 @@ static void brcmf_sdio_dpc(struct brcmf_
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if ((bus->sdiodev->state != BRCMF_SDIOD_DATA) || (err != 0)) {
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brcmf_err("failed backplane access over SDIO, halting operation\n");
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atomic_set(&bus->intstatus, 0);
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+ if (bus->ctrl_frame_stat) {
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+ bus->ctrl_frame_err = -ENODEV;
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+ bus->ctrl_frame_stat = false;
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+ brcmf_sdio_wait_event_wakeup(bus);
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+ }
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} else if (atomic_read(&bus->intstatus) ||
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atomic_read(&bus->ipend) > 0 ||
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(!atomic_read(&bus->fcstate) &&
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