From: Marek Olšák <marek.olsak@amd.com>
Date: Thu, 10 Sep 2015 15:53:28 +0000 (+0200)
Subject: gallium/radeon: handle buffer_map staging buffer failures better
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=282b3780123bace557fc90127bd35b075ea0873e;p=mesa.git

gallium/radeon: handle buffer_map staging buffer failures better

Cc: 11.0 <mesa-stable@lists.freedesktop.org>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
---

diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c
index 4adcccbb8ed..f341ecb41a5 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -305,12 +305,11 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
 				data += box->x % R600_MAP_BUFFER_ALIGNMENT;
 				return r600_buffer_get_transfer(ctx, resource, level, usage, box,
 								ptransfer, data, staging, offset);
-			} else {
-				return NULL; /* error, shouldn't occur though */
 			}
+		} else {
+			/* At this point, the buffer is always idle (we checked it above). */
+			usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
 		}
-		/* At this point, the buffer is always idle (we checked it above). */
-		usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
 	}
 	/* Using a staging buffer in GTT for larger reads is much faster. */
 	else if ((usage & PIPE_TRANSFER_READ) &&