[PATCH -mm] Fix lseek on /proc/kcore

[Alexey Dobriyan]

Signed-off-by: Alexey Dobriyan <adobriyan@xxxxx>
---

 fs/proc/inode.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -167,8 +167,9 @@ static loff_t proc_reg_llseek(struct fil
 	llseek = pde->proc_fops->llseek;
 	spin_unlock(&pde->pde_unload_lock);
 
-	if (llseek)
-		rv = llseek(file, offset, whence);
+	if (!llseek)
+		llseek = default_llseek;
+	rv = llseek(file, offset, whence);
 
 	spin_lock(&pde->pde_unload_lock);
 	pde->pde_users--;

-
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