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-rw-r--r--block/ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/ioctl.c b/block/ioctl.c
index 38aa194f63e..3d866d0037f 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -242,6 +242,7 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
* We need to set the startsect first, the driver may
* want to override it.
*/
+ memset(&geo, 0, sizeof(geo));
geo.start = get_start_sect(bdev);
ret = disk->fops->getgeo(bdev, &geo);
if (ret)