commit 98f90debc2b64a40a416dd9794ac2d8de6b43af2
author Ching Huang <ching2048@areca.com.tw> Wed Nov 25 19:41:23 2015 +0800
committer Martin K. Petersen <martin.petersen@oracle.com> Mon Nov 30 17:50:38 2015 -0500
tree c3e112edcae714cf1982c3169cf23872326bf7ce
parent 251e2d25bfb72b69edd414abfa42a41191d9657a

arcmsr: fixes not release allocated resource

Releasing allocated resource if get configuration data failed.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/arcmsr/arcmsr_hba.c

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 397cdd5..41f9a00 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -2664,7 +2664,7 @@
 	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 @@
 	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)