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-rw-r--r--fs/proc/inode.c3
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)