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-rw-r--r--mysys/mf_iocache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mysys/mf_iocache.c b/mysys/mf_iocache.c
index 4dd0f7500aa..62d2b0a210c 100644
--- a/mysys/mf_iocache.c
+++ b/mysys/mf_iocache.c
@@ -557,7 +557,7 @@ int _my_b_read(IO_CACHE *info, uchar *Buffer, size_t Count)
}
res= info->read_function(info, Buffer, Count);
if (res && info->error >= 0)
- info->error+= left_length; /* update number or read bytes */
+ info->error+= (int)left_length; /* update number or read bytes */
return res;
}