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path: root/drivers/scsi/pm8001/pm8001_sas.c
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Diffstat (limited to 'drivers/scsi/pm8001/pm8001_sas.c')
-rw-r--r--drivers/scsi/pm8001/pm8001_sas.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 3a863d776724..8e3f2f9ddaac 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -66,7 +66,11 @@ static int pm8001_find_tag(struct sas_task *task, u32 *tag)
void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag)
{
void *bitmap = pm8001_ha->tags;
- clear_bit(tag, bitmap);
+ unsigned long flags;
+
+ spin_lock_irqsave(&pm8001_ha->bitmap_lock, flags);
+ __clear_bit(tag, bitmap);
+ spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags);
}
/**
@@ -76,9 +80,9 @@ void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag)
*/
int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out)
{
- unsigned int tag;
void *bitmap = pm8001_ha->tags;
unsigned long flags;
+ unsigned int tag;
spin_lock_irqsave(&pm8001_ha->bitmap_lock, flags);
tag = find_first_zero_bit(bitmap, pm8001_ha->tags_num);
@@ -86,7 +90,7 @@ int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out)
spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags);
return -SAS_QUEUE_FULL;
}
- set_bit(tag, bitmap);
+ __set_bit(tag, bitmap);
spin_unlock_irqrestore(&pm8001_ha->bitmap_lock, flags);
*tag_out = tag;
return 0;