dmaengine: ptdma: Remove dead code from pt_dmaengine_register()

devm_kasprintf() is used to allocate and format a string and the
returned pointer is assigned to 'cmd_cache_name'. However, the variable
'cmd_cache_name' is not effectively used.

Remove the dead code.

Signed-off-by: Eder Zulian <ezulian@redhat.com>
Reviewed-by: Nathan Lynch <nathan.lynch@amd.com>
Acked-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20250411165451.240830-1-ezulian@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: efzrh

drivers/dma/amd/ptdma/ptdma-dmaengine.c

@@ -565,7 +565,6 @@ int pt_dmaengine_register(struct pt_device *pt)
 	struct ae4_device *ae4 = NULL;
 	struct pt_dma_chan *chan;
 	char *desc_cache_name;
-	char *cmd_cache_name;
 	int ret, i;
 
 	if (pt->ver == AE4_DMA_VERSION)
@@ -581,12 +580,6 @@ int pt_dmaengine_register(struct pt_device *pt)
 	if (!pt->pt_dma_chan)
 		return -ENOMEM;
 
-	cmd_cache_name = devm_kasprintf(pt->dev, GFP_KERNEL,
-					"%s-dmaengine-cmd-cache",
-					dev_name(pt->dev));
-	if (!cmd_cache_name)
-		return -ENOMEM;
-
 	desc_cache_name = devm_kasprintf(pt->dev, GFP_KERNEL,
 					 "%s-dmaengine-desc-cache",
 					 dev_name(pt->dev));