svn commit: r249595 - head/sys/dev/ips

[Hiren Panchasara]

Author: hiren
Date: Wed Apr 17 21:21:27 2013
New Revision: 249595
URL: http://svnweb.freebsd.org/changeset/base/249595

Log:
  Improving r249461 by providing a better way to handle the clang warning.
  
  PR:		kern/177164
  Reviewed by:	jhb
  Approved by:	sbruno (mentor)

Modified:
  head/sys/dev/ips/ips.c

Modified: head/sys/dev/ips/ips.c
==============================================================================
--- head/sys/dev/ips/ips.c	Wed Apr 17 21:08:18 2013	(r249594)
+++ head/sys/dev/ips/ips.c	Wed Apr 17 21:21:27 2013	(r249595)
@@ -578,7 +578,7 @@ static int ips_copperhead_queue_init(ips
 {
 	int error;
 	bus_dma_tag_t dmatag;
-	bus_dmamap_t dmamap = NULL;
+	bus_dmamap_t dmamap;
        	if (bus_dma_tag_create(	/* parent    */	sc->adapter_dmatag,
 				/* alignemnt */	1,
 				/* boundary  */	0,
@@ -595,7 +595,7 @@ static int ips_copperhead_queue_init(ips
 				&dmatag) != 0) {
                 device_printf(sc->dev, "can't alloc dma tag for statue queue\n");
 		error = ENOMEM;
-		goto exit;
+		return error;
         }
 	if(bus_dmamem_alloc(dmatag, (void *)&(sc->copper_queue), 
 	   		    BUS_DMA_NOWAIT, &dmamap)){
@@ -623,7 +623,8 @@ static int ips_copperhead_queue_init(ips
 	
 	return 0;
 exit:
-	bus_dmamem_free(dmatag, sc->copper_queue, dmamap);
+	if (sc->copper_queue != NULL)
+		bus_dmamem_free(dmatag, sc->copper_queue, dmamap);
 	bus_dma_tag_destroy(dmatag);
 	return error;
 }