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Remove easily user-triggerable BUG from generic_setlease
This can be trivially triggered from userspace by passing in something unexpected. kernel BUG at fs/locks.c:1468! invalid opcode: 0000 [#1] SMP RIP: 0010:generic_setlease+0xc2/0x100 Call Trace: __vfs_setlease+0x35/0x40 fcntl_setlease+0x76/0x150 sys_fcntl+0x1c6/0x810 system_call_fastpath+0x1a/0x1f Signed-off-by: Dave Jones <davej@redhat.com> Cc: stable@kernel.org # 3.2+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1465,7 +1465,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
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case F_WRLCK:
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return generic_add_lease(filp, arg, flp);
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default:
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BUG();
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return -EINVAL;
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}
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}
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EXPORT_SYMBOL(generic_setlease);
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