Fix warning on mingw32

/src/qemu/hw/ide/core.c: In function 'ide_drive_pre_save':
/src/qemu/hw/ide/core.c:2740: warning: comparison is always false due to limited range of data type

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/hw/ide/core.c b/hw/ide/core.c
index 9d687a9d80..2e0971ddeb 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -2727,6 +2727,7 @@ static int ide_drive_post_load(void *opaque, int version_id)
 static void ide_drive_pre_save(void *opaque)
 {
     IDEState *s = opaque;
+    int idx;
 
     s->cur_io_buffer_len = 0;
 
@@ -2736,11 +2737,13 @@ static void ide_drive_pre_save(void *opaque)
     s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
     s->cur_io_buffer_len = s->data_end - s->data_ptr;
 
-    s->end_transfer_fn_idx = transfer_end_table_idx(s->end_transfer_func);
-    if (s->end_transfer_fn_idx == -1) {
+    idx = transfer_end_table_idx(s->end_transfer_func);
+    if (idx == -1) {
         fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
                         __func__);
         s->end_transfer_fn_idx = 2;
+    } else {
+        s->end_transfer_fn_idx = idx;
     }
 }