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authorKAMBAROV, ZAUR <kambarov@berkeley.edu>2005-07-07 17:57:06 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 18:23:47 -0700
commit7eaae2828dadae3abde7f77734c874d4b74b313a (patch)
tree7cee35b529ebb2e88c808b52909821a05d324035 /fs/locks.c
parent8f96c95680bfe66ff00c91859d4c73edf539b854 (diff)
downloadlwn-7eaae2828dadae3abde7f77734c874d4b74b313a.tar.gz
lwn-7eaae2828dadae3abde7f77734c874d4b74b313a.zip
[PATCH] coverity: fs/locks.c flp null check
We're dereferencing `flp' and then we're testing it for NULLness. Either the compiler accidentally saved us or the existing null-pointer checdk is redundant. This defect was found automatically by Coverity Prevent, a static analysis tool. Signed-off-by: Zaur Kambarov <zkambarov@coverity.com> Cc: Matthew Wilcox <willy@debian.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/locks.c')
-rw-r--r--fs/locks.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/locks.c b/fs/locks.c
index a0bc03495bd4..29fa5da6c117 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1276,7 +1276,7 @@ int fcntl_getlease(struct file *filp)
*/
static int __setlease(struct file *filp, long arg, struct file_lock **flp)
{
- struct file_lock *fl, **before, **my_before = NULL, *lease = *flp;
+ struct file_lock *fl, **before, **my_before = NULL, *lease;
struct dentry *dentry = filp->f_dentry;
struct inode *inode = dentry->d_inode;
int error, rdlease_count = 0, wrlease_count = 0;
@@ -1287,6 +1287,8 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp)
if (!flp || !(*flp) || !(*flp)->fl_lmops || !(*flp)->fl_lmops->fl_break)
goto out;
+ lease = *flp;
+
error = -EAGAIN;
if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
goto out;