修改GPIO导出默认初始值

hc

2024-10-16 50a212ec906f7524620675f0c57357691c26c81f

 kernel/drivers/scsi/megaraid/megaraid_sas_base.c
..
..
@@ -3221,14 +3221,13 @@
3221
3221
 	struct megasas_instance *instance =
3222
3222
 		(struct megasas_instance *) shost->hostdata;
3223
3223
 	int val = 0;
3224
-	unsigned long flags;
3225
3224
 
3226
3225
 	if (kstrtoint(buf, 0, &val) != 0)
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3226
 		return -EINVAL;
3228
3227
 
3229
-	spin_lock_irqsave(&instance->crashdump_lock, flags);
3228
+	mutex_lock(&instance->crashdump_lock);
3230
3229
 	instance->fw_crash_buffer_offset = val;
3231
-	spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3230
+	mutex_unlock(&instance->crashdump_lock);
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 	return strlen(buf);
3233
3232
 }
3234
3233
 
..
..
@@ -3243,24 +3242,23 @@
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 	unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
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 	unsigned long chunk_left_bytes;
3245
3244
 	unsigned long src_addr;
3246
-	unsigned long flags;
3247
3245
 	u32 buff_offset;
3248
3246
 
3249
-	spin_lock_irqsave(&instance->crashdump_lock, flags);
3247
+	mutex_lock(&instance->crashdump_lock);
3250
3248
 	buff_offset = instance->fw_crash_buffer_offset;
3251
-	if (!instance->crash_dump_buf &&
3249
+	if (!instance->crash_dump_buf ||
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3250
 		!((instance->fw_crash_state == AVAILABLE) ||
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3251
 		(instance->fw_crash_state == COPYING))) {
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 		dev_err(&instance->pdev->dev,
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3253
 			"Firmware crash dump is not available\n");
3256
-		spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3254
+		mutex_unlock(&instance->crashdump_lock);
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3255
 		return -EINVAL;
3258
3256
 	}
3259
3257
 
3260
3258
 	if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3261
3259
 		dev_err(&instance->pdev->dev,
3262
3260
 			"Firmware crash dump offset is out of range\n");
3263
-		spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3261
+		mutex_unlock(&instance->crashdump_lock);
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3262
 		return 0;
3265
3263
 	}
3266
3264
 
..
..
@@ -3272,7 +3270,7 @@
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3270
 	src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
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3271
 		(buff_offset % dmachunk);
3274
3272
 	memcpy(buf, (void *)src_addr, size);
3275
-	spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3273
+	mutex_unlock(&instance->crashdump_lock);
3276
3274
 
3277
3275
 	return size;
3278
3276
 }
..
..
@@ -3297,7 +3295,6 @@
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3295
 	struct megasas_instance *instance =
3298
3296
 		(struct megasas_instance *) shost->hostdata;
3299
3297
 	int val = 0;
3300
-	unsigned long flags;
3301
3298
 
3302
3299
 	if (kstrtoint(buf, 0, &val) != 0)
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3300
 		return -EINVAL;
..
..
@@ -3311,9 +3308,9 @@
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3308
 	instance->fw_crash_state = val;
3312
3309
 
3313
3310
 	if ((val == COPIED) || (val == COPY_ERROR)) {
3314
-		spin_lock_irqsave(&instance->crashdump_lock, flags);
3311
+		mutex_lock(&instance->crashdump_lock);
3315
3312
 		megasas_free_host_crash_buffer(instance);
3316
-		spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3313
+		mutex_unlock(&instance->crashdump_lock);
3317
3314
 		if (val == COPY_ERROR)
3318
3315
 			dev_info(&instance->pdev->dev, "application failed to "
3319
3316
 				"copy Firmware crash dump\n");
..
..
@@ -7325,7 +7322,7 @@
7325
7322
 	init_waitqueue_head(&instance->int_cmd_wait_q);
7326
7323
 	init_waitqueue_head(&instance->abort_cmd_wait_q);
7327
7324
 
7328
-	spin_lock_init(&instance->crashdump_lock);
7325
+	mutex_init(&instance->crashdump_lock);
7329
7326
 	spin_lock_init(&instance->mfi_pool_lock);
7330
7327
 	spin_lock_init(&instance->hba_lock);
7331
7328
 	spin_lock_init(&instance->stream_lock);