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| author | Thomas Gleixner <tglx@linutronix.de> | 2016-09-20 23:20:32 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-09-20 23:20:32 +0200 |
| commit | 464b5847e61085f81bb99ce48eb427a0dc7617dc (patch) | |
| tree | 805c97855a9a13c06910687bbbbe3eb7bc371902 /arch/sh/include/asm/uaccess.h | |
| parent | 0a30d69195604f136a4e3bfaf453f742e583ce95 (diff) | |
| parent | e875bd66dfb68f4e898e9a43ef42858c504a7f23 (diff) | |
| download | linux-464b5847e61085f81bb99ce48eb427a0dc7617dc.tar.gz linux-464b5847e61085f81bb99ce48eb427a0dc7617dc.tar.bz2 linux-464b5847e61085f81bb99ce48eb427a0dc7617dc.zip | |
Merge branch 'irq/urgent' into irq/core
Merge urgent fixes so pending patches for 4.9 can be applied.
Diffstat (limited to 'arch/sh/include/asm/uaccess.h')
| -rw-r--r-- | arch/sh/include/asm/uaccess.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h index a49635c51266..92ade79ac427 100644 --- a/arch/sh/include/asm/uaccess.h +++ b/arch/sh/include/asm/uaccess.h @@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n) __kernel_size_t __copy_size = (__kernel_size_t) n; if (__copy_size && __access_ok(__copy_from, __copy_size)) - return __copy_user(to, from, __copy_size); + __copy_size = __copy_user(to, from, __copy_size); + + if (unlikely(__copy_size)) + memset(to + (n - __copy_size), 0, __copy_size); return __copy_size; } |