From 68206d734233f6d2500762b93d81674a6f0aa033 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 20 May 2014 13:02:26 +0200
Subject: [PATCH] usb-mtp: handle lseek failure
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/usb/dev-mtp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c
index c2750e4bd2..a95298bd34 100644
--- 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) {