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-rw-r--r--block/compat_ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 7c668c8a6f95..7e5d474dc6ba 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -59,6 +59,7 @@ static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev,
if (!disk->fops->getgeo)
return -ENOTTY;
+ memset(&geo, 0, sizeof(geo));
/*
* We need to set the startsect first, the driver may
* want to override it.