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/r200/r200_texmem.c b/src/mesa/drivers/dri/r200/r200_texmem.c
index 7472afeedd7..14ee8238ad8 100644
--- a/src/mesa/drivers/dri/r200/r200_texmem.c
+++ b/src/mesa/drivers/dri/r200/r200_texmem.c
@@ -427,7 +427,7 @@ static void uploadSubImage( r200ContextPtr rmesa, r200TexObjPtr t,
 	    fprintf(stderr, "DRM_RADEON_TEXTURE:  again!\n");
 	 usleep(1);
       }
-   } while ( ret && errno == EAGAIN );
+   } while ( ret == -EAGAIN );
 
    UNLOCK_HARDWARE( rmesa );