[PATCH] staging: android: ashmem: lseek failed due to no FMODE_LSEEK.

[zhangshuxiaomi]

From: zhangshuxiao <zhangshux...@xiaomi.com>

vfs_llseek will check whether the file mode has
FMODE_LSEEK, no return failure. But ashmem can be
lseek, so add FMODE_LSEEK to ashmem file.

Signed-off-by: zhangshuxiao <zhangshux...@xiaomi.com>
---
 drivers/staging/android/ashmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 3f11332..e4530ac 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -392,6 +392,7 @@ static int ashmem_mmap(struct file *file, struct 
vm_area_struct *vma)
                        ret = PTR_ERR(vmfile);
                        goto out;
                }
+               vmfile->f_mode |= FMODE_LSEEK;
                asma->file = vmfile;
        }
        get_file(asma->file);
-- 
1.9.1