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Diffstat (limited to 'fs/read_write.c')
-rw-r--r--fs/read_write.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/read_write.c b/fs/read_write.c
index 6be4b1a1956b..c4c2bee373ed 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -467,10 +467,10 @@ static ssize_t do_readv_writev(int type, struct file *file,
void __user *buf = iov[seg].iov_base;
ssize_t len = (ssize_t)iov[seg].iov_len;
- if (unlikely(!access_ok(vrfy_dir(type), buf, len)))
- goto Efault;
if (len < 0) /* size_t not fitting an ssize_t .. */
goto out;
+ if (unlikely(!access_ok(vrfy_dir(type), buf, len)))
+ goto Efault;
tot_len += len;
if ((ssize_t)tot_len < 0) /* maths overflow on the ssize_t */
goto out;