[Scst-svn] [master] qla2x00t-32gbit: Fix DMA mapping test in qla24xx_get_port_database()

[Gleb C. <lna...@ya...>]

Commit: d0b970f
GitHub URL: https://github.com/SCST-project/scst/commit/d0b970fad01e2869ed3fa05e5803fcdfa0e20636
Author: Gleb Chesnokov
Date: 2025-08-05T18:15:49+03:00
Log Message:
-----------
qla2x00t-32gbit: Fix DMA mapping test in qla24xx_get_port_database()

dma_map_XXX() functions return as error values DMA_MAPPING_ERROR which is
often ~0.  The error value should be tested with dma_mapping_error() like
it was done in qla26xx_dport_diagnostics().

Fixes: 818c7f87a177 ("scsi: qla2xxx: Add changes in preparation for vendor extended FDMI/RDP")
Signed-off-by: Thomas Fourier <fou...@gm...>
Link: https://lore.kernel.org/r/202...@gm...
Signed-off-by: Martin K. Petersen <mar...@or...>
[ commit c3b214719a87 upstream ]

Modified Paths:
--------------
 qla2x00t-32gbit/qla_mbx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

===================================================================
diff --git a/qla2x00t-32gbit/qla_mbx.c b/qla2x00t-32gbit/qla_mbx.c
index 0cd6f3e..13b6cb1 100644
--- a/qla2x00t-32gbit/qla_mbx.c
+++ b/qla2x00t-32gbit/qla_mbx.c
@@ -2147,7 +2147,7 @@ qla24xx_get_port_database(scsi_qla_host_t *vha, u16 nport_handle,
 
 	pdb_dma = dma_map_single(&vha->hw->pdev->dev, pdb,
 	    sizeof(*pdb), DMA_FROM_DEVICE);
-	if (!pdb_dma) {
+	if (dma_mapping_error(&vha->hw->pdev->dev, pdb_dma)) {
 		ql_log(ql_log_warn, vha, 0x1116, "Failed to map dma buffer.\n");
 		return QLA_MEMORY_ALLOC_FAILED;
 	}