usb-mtp: handle lseek failure

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c
index c2750e4bd20fa757002ed7281aa463c23213e1a9..a95298bd3402921d6ecf1427f9d7e6604c709679 100644 (file)
--- a/hw/usb/dev-mtp.c
+++ b/hw/usb/dev-mtp.c
@@ -702,7 +702,10 @@ static MTPData *usb_mtp_get_partial_object(MTPState *s, MTPControl *c,
     if (offset > o->stat.st_size) {
         offset = o->stat.st_size;
     }
-    lseek(d->fd, offset, SEEK_SET);
+    if (lseek(d->fd, offset, SEEK_SET) < 0) {
+        usb_mtp_data_free(d);
+        return NULL;
+    }
 
     d->length = c->argv[2];
     if (d->length > o->stat.st_size - offset) {