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qla4xxx: check the return value of dma_alloc_coherent()

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the qla4xxx_alloc_fw_dump() calls dma_alloc_coherent() but does not
check its return value.

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-By: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Maurizio Lombardi 2014-07-28 14:55:27 +02:00 committed by Christoph Hellwig
parent 4d0a21f1fd
commit a5c277ec5a
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/qla4xxx/ql4_init.c
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@ -334,6 +334,12 @@ void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
/* Allocate memory for saving the template */
md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
&md_tmp_dma, GFP_KERNEL);
if (!md_tmp) {
ql4_printk(KERN_INFO, ha,
"scsi%ld: Failed to allocate DMA memory\n",
ha->host_no);
return;
}
/* Request template */
status = qla4xxx_get_minidump_template(ha, md_tmp_dma);