disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

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