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

From	zhangshuxiaomi@gmail.com
Newsgroups	linux.kernel
Subject	[PATCH] staging: android: ashmem: lseek failed due to no FMODE_LSEEK.
Date	2017-03-08 11:30 +0100
Message-ID	<tiH0Z-5e8-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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From: zhangshuxiao <zhangshuxiao@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 <zhangshuxiao@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

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[PATCH] staging: android: ashmem: lseek failed due to no FMODE_LSEEK. zhangshuxiaomi@gmail.com - 2017-03-08 11:30 +0100
  Re: [PATCH] staging: android: ashmem: lseek failed due to no  FMODE_LSEEK. Greg KH <gregkh@linuxfoundation.org> - 2017-03-09 13:40 +0100

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