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gpiolib: Refactor gpio_export
[pandora-kernel.git]
/
fs
/
file.c
diff --git
a/fs/file.c
b/fs/file.c
index
0f1bda4
..
d3b5fa8
100644
(file)
--- a/
fs/file.c
+++ b/
fs/file.c
@@
-922,6
+922,9
@@
SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
if ((flags & ~O_CLOEXEC) != 0)
return -EINVAL;
+ if (unlikely(oldfd == newfd))
+ return -EINVAL;
+
if (newfd >= rlimit(RLIMIT_NOFILE))
return -EMFILE;