diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/wil_crash_dump.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wil_crash_dump.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/drivers/net/wireless/ath/wil6210/wil_crash_dump.c b/drivers/net/wireless/ath/wil6210/wil_crash_dump.c index dc33a0b4c3fa..89c12cb2aaab 100644 --- a/drivers/net/wireless/ath/wil6210/wil_crash_dump.c +++ b/drivers/net/wireless/ath/wil6210/wil_crash_dump.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: ISC /* * Copyright (c) 2015,2017 Qualcomm Atheros, Inc. - * Copyright (c) 2018, The Linux Foundation. All rights reserved. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. */ #include "wil6210.h" @@ -73,13 +62,14 @@ int wil_fw_copy_crash_dump(struct wil6210_priv *wil, void *dest, u32 size) return -EINVAL; } - set_bit(wil_status_collecting_dumps, wil->status); + down_write(&wil->mem_lock); + if (test_bit(wil_status_suspending, wil->status) || - test_bit(wil_status_suspended, wil->status) || - test_bit(wil_status_resetting, wil->status)) { - wil_err(wil, "cannot collect fw dump during suspend/reset\n"); - clear_bit(wil_status_collecting_dumps, wil->status); - return -EINVAL; + test_bit(wil_status_suspended, wil->status)) { + wil_err(wil, + "suspend/resume in progress. cannot copy crash dump\n"); + up_write(&wil->mem_lock); + return -EBUSY; } /* copy to crash dump area */ @@ -101,7 +91,7 @@ int wil_fw_copy_crash_dump(struct wil6210_priv *wil, void *dest, u32 size) (const void __iomem * __force)data, len); } - clear_bit(wil_status_collecting_dumps, wil->status); + up_write(&wil->mem_lock); return 0; } |