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Avoid dereferencing NULL pointer.

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This commit is contained in:
Tor Egge 2006-05-05 19:32:35 +00:00
parent 4687ab54e3
commit 5ac6cbfdfb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=158320
1 changed files with 3 additions and 1 deletions
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4
sys/sys/mount.h
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@ -576,7 +576,9 @@ extern int mpsafe_vfs;
#define VFS_LOCK_GIANT(MP) __extension__ \
({ \
int _locked; \
if (VFS_NEEDSGIANT((MP))) { \
struct mount *_MP; \
_MP = (MP); \
if (VFS_NEEDSGIANT(_MP)) { \
mtx_lock(&Giant); \
_locked = 1; \
} else \