Attempt to fix the issue reported by Alan Grimes with DRM_RADEON_TEXTURE

erroring out when it shouldn't.  The errno could be changed by usleep() between
the ioctl call and the loop check, if a signal was received.  This could cause
an EAGAIN return from the DRM_RADEON_TEXTURE ioctl to not loop again.
Instead of checking errno, check thevalue of ret itself, since it is a saved
(and sign-flipped) copy of errno from the ioctl call.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_texmem.c b/src/mesa/drivers/dri/r300/r300_texmem.c
index 5c70e2e3c54..ca392762ad4 100644
--- a/src/mesa/drivers/dri/r300/r300_texmem.c
+++ b/src/mesa/drivers/dri/r300/r300_texmem.c
@@ -417,7 +417,7 @@ static void uploadSubImage(r300ContextPtr rmesa, r300TexObjPtr t,
 					"DRM_RADEON_TEXTURE:  again!\n");
 			usleep(1);
 		}
-	} while (ret && errno == EAGAIN);
+	} while (ret == -EAGAIN);
 
 	UNLOCK_HARDWARE(&rmesa->radeon);