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authorStephen Tweedie <sct@redhat.com>2005-05-18 11:22:31 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-18 09:10:02 -0700
commite72022e13d659bece2fc9cb2dd97afa67047dbca (patch)
treec71a8bf39274d7ad105e0618a7f0ff57d1509c17 /fs
parentd1ded203adf16b42ca90e9041120ae465ca5c4a6 (diff)
[PATCH] Fix filp being passed through raw ioctl handler
Don't pass meaningless file handles to block device ioctls. The recent raw IO ioctl-passthrough fix started passing the raw file handle into the block device ioctl handler. That's unlikely to be useful, as the file handle is actually open on a character-mode raw device, not a block device, so dereferencing it is not going to yield useful results to a block device ioctl handler. Previously we just passed NULL; also not a value that can usefully be dereferenced, but at least if it does happen, we'll oops instead of silently pretending that the file is a block device, so NULL is the more defensive option here. This patch reverts to that behaviour. Noticed by Al Viro. Signed-off-by: Stephen Tweedie <sct@redhat.com> Acked-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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