Avoid dereferencing NULL pointer.
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@ -576,7 +576,9 @@ extern int mpsafe_vfs;
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#define VFS_LOCK_GIANT(MP) __extension__ \
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({ \
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int _locked; \
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if (VFS_NEEDSGIANT((MP))) { \
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struct mount *_MP; \
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_MP = (MP); \
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if (VFS_NEEDSGIANT(_MP)) { \
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mtx_lock(&Giant); \
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_locked = 1; \
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} else \
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