From: Michel Dänzer <[email protected]>
glamor_fds_from_pixmap returns 0 on error, but we were treating that as
success, continuing with uninitialized stride and fd values.
Also bail if the offset isn't 0, same as in dri3_fd_from_pixmap.
Fixes: c8c276c9569b "glamor: Implement PixmapFromBuffers and
BuffersFromPixmap"
Signed-off-by: Michel Dänzer <[email protected]>
---
glamor/glamor.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/glamor/glamor.c b/glamor/glamor.c
index e2c74d17a..63f0947fa 100644
--- a/glamor/glamor.c
+++ b/glamor/glamor.c
@@ -865,17 +865,15 @@ glamor_fd_from_pixmap(ScreenPtr screen,
&modifier);
/* Pixmaps with multi-planes/modifier are not supported in this interface
*/
- if (ret > 1) {
- while (ret > 0)
- close(fds[--ret]);
- return -1;
+ if (ret == 1 && offsets[0] == 0) {
+ *stride = strides[0];
+ *size = pixmap->drawable.height * *stride;
+ return fds[0];
}
- ret = fds[0];
- *stride = strides[0];
- *size = pixmap->drawable.height * *stride;
-
- return ret;
+ while (ret > 0)
+ close(fds[--ret]);
+ return -1;
}
_X_EXPORT int
--
2.17.0
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