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| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-08-14 15:16:18 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-08-14 15:16:18 -0400 |
| commit | 3f61631d47f115b83c935d0039f95cb68b0c8ab7 (patch) | |
| tree | 9e32fe16349d823d8b58deea5d614a9675821c57 | |
| parent | 5d6a0f4da9275f6c212de33777778673ba91241a (diff) | |
| download | lwn-3f61631d47f115b83c935d0039f95cb68b0c8ab7.tar.gz lwn-3f61631d47f115b83c935d0039f95cb68b0c8ab7.zip | |
take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.
Fixes: 868941b14441 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/proc/inode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/inode.c b/fs/proc/inode.c index f130499ad843..f495fdb39151 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -494,6 +494,9 @@ static int proc_reg_open(struct inode *inode, struct file *file) typeof_member(struct proc_ops, proc_release) release; struct pde_opener *pdeo; + if (!pde->proc_ops->proc_lseek) + file->f_mode &= ~FMODE_LSEEK; + if (pde_is_permanent(pde)) { open = pde->proc_ops->proc_open; if (open) |