diff options
| author | Brian Norris <briannorris@chromium.org> | 2018-01-12 13:08:36 -0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-01-16 18:00:16 +0200 |
| commit | 7e34c0d2f631a1ecd4a0a6973502fff72343487e (patch) | |
| tree | b3946210981ba102373c30a71c0dc28f2b0d5593 | |
| parent | 7e2c49222b4e26590d68578ec8fec0988859c218 (diff) | |
Revert "mwifiex: cancel pcie/sdio work in remove/shutdown handler"
This reverts commit b713bbf1471b56b572ce26bd02b81a85c2b007f4.
The "fix" in question does not actually fix all related problems, and it
also introduces new deadlock possibilities. Since commit b014e96d1abb
("PCI: Protect pci_error_handlers->reset_notify() usage with
device_lock()"), the race in question is actually resolved (PCIe reset
cannot happen at the same time as remove()). Instead, this "fix" just
introduces a deadlock where mwifiex_pcie_card_reset_work() is waiting on
device_lock, which is held by PCIe device remove(), which is waiting
on...mwifiex_pcie_card_reset_work().
The proper thing to do is just to fix the deadlock. Patch for this will
come separately.
Cc: Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/pcie.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/sdio.c | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c index 23209c5cab05..f666cb2ea7e0 100644 --- a/drivers/net/wireless/marvell/mwifiex/pcie.c +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c @@ -310,8 +310,6 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev) mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); } - cancel_work_sync(&card->work); - mwifiex_remove_card(adapter); } diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c index 248858723753..a82880132af4 100644 --- a/drivers/net/wireless/marvell/mwifiex/sdio.c +++ b/drivers/net/wireless/marvell/mwifiex/sdio.c @@ -399,8 +399,6 @@ mwifiex_sdio_remove(struct sdio_func *func) mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); } - cancel_work_sync(&card->work); - mwifiex_remove_card(adapter); } |