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Subject[PATCH v3 2/5] arcmsr: fixes not release allocated resource
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Date
From: Ching Huang <ching2048@areca.com.tw>

Releasing allocated resource if get configuration data failed.

Signed-of-by: Ching Huang <ching2048@areca.com.tw>

---

diff -uprN a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
--- a/drivers/scsi/arcmsr/arcmsr_hba.c 2015-11-24 11:35:26.000000000 +0800
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c 2015-11-25 19:04:44.590970000 +0800
@@ -2664,7 +2664,7 @@ static bool arcmsr_hbaB_get_config(struc
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n", acb->host->host_no);
- return false;
+ goto err_free_dma;
}
count = 8;
while (count){
@@ -2707,6 +2707,10 @@ static bool arcmsr_hbaB_get_config(struc
acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
/*firm_ide_channels,4,16-19*/
return true;
+err_free_dma:
+ dma_free_coherent(&acb->pdev->dev, acb->roundup_ccbsize,
+ acb->dma_coherent2, acb->dma_coherent_handle2);
+ return false;
}

static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)



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