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

From: zhangshuxiaomi
Date: Thu Apr 06 2017 - 10:30:48 EST


From: zhangshuxiao <zhangshuxiao@xxxxxxxxxx>

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: Shuxiao Zhang <zhangshuxiao@xxxxxxxxxx>
Tested-by: Greg Hackmann <ghackmann@xxxxxxxxxx>
---
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