From bc1434f7da172e041d006e595d4f700fc159c2e4 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Sat, 20 Mar 2021 16:23:58 -0700 Subject: [PATCH] scsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats() [ Upstream commit a2b2cc660822cae08c351c7f6b452bfd1330a4f7 ] This patch fixes the following Coverity warning: CID 361199 (#1 of 1): Unchecked return value (CHECKED_RETURN) 3. check_return: Calling qla24xx_get_isp_stats without checking return value (as is done elsewhere 4 out of 5 times). Link: https://lore.kernel.org/r/20210320232359.941-7-bvanassche@acm.org Cc: Quinn Tran Cc: Mike Christie Cc: Himanshu Madhani Cc: Daniel Wagner Cc: Lee Duncan Reviewed-by: Daniel Wagner Reviewed-by: Himanshu Madhani Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/qla2xxx/qla_attr.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 63391c9be05d..3aa9869f6fae 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -2864,6 +2864,8 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost) vha->qla_stats.jiffies_at_last_reset = get_jiffies_64(); if (IS_FWI2_CAPABLE(ha)) { + int rval; + stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma, GFP_KERNEL); if (!stats) { @@ -2873,7 +2875,11 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost) } /* reset firmware statistics */ - qla24xx_get_isp_stats(base_vha, stats, stats_dma, BIT_0); + rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, BIT_0); + if (rval != QLA_SUCCESS) + ql_log(ql_log_warn, vha, 0x70de, + "Resetting ISP statistics failed: rval = %d\n", + rval); dma_free_coherent(&ha->pdev->dev, sizeof(*stats), stats, stats_dma);