[PATCH] cairo-util: load_cairo_surface returns NULL if loading the file fails.

[ustun.ergenoglu at gmail.com]

From: Ustun Ergenoglu <ego at ustun.fi>

Otherwise a non-existent file in the configuration crashes the desktop shell.

Signed-off-by: Ustun Ergenoglu <ego at ustun.fi>
---
 clients/cairo-util.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/clients/cairo-util.c b/clients/cairo-util.c
index 1f8d307..6d5794b 100644
--- a/clients/cairo-util.c
+++ b/clients/cairo-util.c
@@ -300,6 +300,10 @@ load_cairo_surface(const char *filename)
 	void *data;
 
 	image = load_image(filename);
+	if (image == NULL) {
+		return NULL;
+	}
+
 	data = pixman_image_get_data(image);
 	width = pixman_image_get_width(image);
 	height = pixman_image_get_height(image);
-- 
1.7.5.4