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authorChristoph Hellwig <hch@lst.de>2008-11-05 09:03:15 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-01-02 11:51:44 -0500
commitfa9907810bf733ef48b0cd50023b03b78f983434 (patch)
tree93abfd78bf6a1807b4614e740018512a07bf9dba /drivers/scsi
parent327d0c7d89319a8ee8e946b90cb94c08daadb723 (diff)
[SCSI] clean up scsi_times_out
Make sure the control flow in scsi_times_out makes sense. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_error.c24
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 381838ebd460..7484e4317efb 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -124,34 +124,22 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag)
124enum blk_eh_timer_return scsi_times_out(struct request *req) 124enum blk_eh_timer_return scsi_times_out(struct request *req)
125{ 125{
126 struct scsi_cmnd *scmd = req->special; 126 struct scsi_cmnd *scmd = req->special;
127 enum blk_eh_timer_return (*eh_timed_out)(struct scsi_cmnd *);
128 enum blk_eh_timer_return rtn = BLK_EH_NOT_HANDLED; 127 enum blk_eh_timer_return rtn = BLK_EH_NOT_HANDLED;
129 128
130 scsi_log_completion(scmd, TIMEOUT_ERROR); 129 scsi_log_completion(scmd, TIMEOUT_ERROR);
131 130
132 if (scmd->device->host->transportt->eh_timed_out) 131 if (scmd->device->host->transportt->eh_timed_out)
133 eh_timed_out = scmd->device->host->transportt->eh_timed_out; 132 rtn = scmd->device->host->transportt->eh_timed_out(scmd);
134 else if (scmd->device->host->hostt->eh_timed_out) 133 else if (scmd->device->host->hostt->eh_timed_out)
135 eh_timed_out = scmd->device->host->hostt->eh_timed_out; 134 rtn = scmd->device->host->hostt->eh_timed_out(scmd);
136 else
137 eh_timed_out = NULL;
138 135
139 if (eh_timed_out) { 136 if (unlikely(rtn == BLK_EH_NOT_HANDLED &&
140 rtn = eh_timed_out(scmd); 137 !scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) {
141 switch (rtn) {
142 case BLK_EH_NOT_HANDLED:
143 break;
144 default:
145 return rtn;
146 }
147 }
148
149 if (unlikely(!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) {
150 scmd->result |= DID_TIME_OUT << 16; 138 scmd->result |= DID_TIME_OUT << 16;
151 return BLK_EH_HANDLED; 139 rtn = BLK_EH_HANDLED;
152 } 140 }
153 141
154 return BLK_EH_NOT_HANDLED; 142 return rtn;
155} 143}
156 144
157/** 145/**