[Qemu-block] [PATCH] block/xen_disk: Convert atoi use to qemu_strtol to allow error checking

[Nia Alarie]

Signed-off-by: Nia Alarie <address@hidden>
---
 hw/block/xen_disk.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index f74fcd42d1..a9ec0ad6eb 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -32,6 +32,7 @@
 #include "qapi/error.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qstring.h"
+#include "qemu/cutils.h"
 #include "trace.h"
 
 /* ------------------------------------------------------------- */
@@ -1010,7 +1011,10 @@ static int blk_init(struct XenDevice *xendev)
         blkdev->devtype = xenstore_read_be_str(&blkdev->xendev, "device-type");
     }
     directiosafe = xenstore_read_be_str(&blkdev->xendev, "direct-io-safe");
-    blkdev->directiosafe = (directiosafe && atoi(directiosafe));
+
+    if (directiosafe && qemu_strtoi(directiosafe, NULL, 10, 
&blkdev->directiosafe)) {
+        goto out_error;
+    }
 
     /* do we have all we need? */
     if (blkdev->params == NULL ||
-- 
2.16.2