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| author | Maurizio Lombardi <mlombard@redhat.com> | 2014-07-28 14:55:27 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-07-30 13:49:37 +0200 |
| commit | a5c277ec5a331171c6508924ce7767e363bf3a05 (patch) | |
| tree | ce8312cc20a327d56bb086c7de957b9c284903e4 | |
| parent | scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction w... (diff) | |
| download | linux-a5c277ec5a331171c6508924ce7767e363bf3a05.tar.xz linux-a5c277ec5a331171c6508924ce7767e363bf3a05.zip | |
qla4xxx: check the return value of dma_alloc_coherent()
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>
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 6f12f859b11d..4180d6d9fe78 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -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); |