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path: root/drivers/scsi/mac53c94.c
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Diffstat (limited to 'drivers/scsi/mac53c94.c')
-rw-r--r--drivers/scsi/mac53c94.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index 9a792a5494b5..edd47d1f0b17 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -103,6 +103,9 @@ static int mac53c94_host_reset(struct scsi_cmnd *cmd)
struct fsc_state *state = (struct fsc_state *) cmd->device->host->hostdata;
struct mac53c94_regs __iomem *regs = state->regs;
struct dbdma_regs __iomem *dma = state->dma;
+ unsigned long flags;
+
+ spin_lock_irqsave(cmd->device->host->host_lock, flags);
writel((RUN|PAUSE|FLUSH|WAKE) << 16, &dma->control);
writeb(CMD_SCSI_RESET, &regs->command); /* assert RST */
@@ -111,6 +114,8 @@ static int mac53c94_host_reset(struct scsi_cmnd *cmd)
udelay(20);
mac53c94_init(state);
writeb(CMD_NOP, &regs->command);
+
+ spin_unlock_irqrestore(cmd->device->host->host_lock, flags);
return SUCCESS;
}