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-rw-r--r--fs/compat.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/compat.c b/fs/compat.c
index f6fd0a00e6cc..691c3fd8ce1d 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1228,7 +1228,9 @@ compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
- ret = compat_readv(file, vec, vlen, &pos);
+ ret = -ESPIPE;
+ if (file->f_mode & FMODE_PREAD)
+ ret = compat_readv(file, vec, vlen, &pos);
fput_light(file, fput_needed);
return ret;
}
@@ -1285,7 +1287,9 @@ compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
- ret = compat_writev(file, vec, vlen, &pos);
+ ret = -ESPIPE;
+ if (file->f_mode & FMODE_PWRITE)
+ ret = compat_writev(file, vec, vlen, &pos);
fput_light(file, fput_needed);
return ret;
}