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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-21 23:33:47 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-24 10:09:38 +0200 |
| commit | b668ad807ae644d287649d1d16772d12e92fba99 (patch) | |
| tree | 2b0c3a2470ddc6608d1c57d6223fafa75f367ead | |
| parent | 4fe20bdfeb7dc828633fcb49ac0faef5350fbe8c (diff) | |
| download | lwn-b668ad807ae644d287649d1d16772d12e92fba99.tar.gz lwn-b668ad807ae644d287649d1d16772d12e92fba99.zip | |
sh64: failing __get_user() should zero
commit c6852389228df9fb3067f94f3b651de2a7921b36 upstream.
It could be done in exception-handling bits in __get_user_b() et.al.,
but the surgery involved would take more knowledge of sh64 details
than I have or _want_ to have.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/sh/include/asm/uaccess_64.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h index c01376c76b86..ca5073dd4596 100644 --- a/arch/sh/include/asm/uaccess_64.h +++ b/arch/sh/include/asm/uaccess_64.h @@ -24,6 +24,7 @@ #define __get_user_size(x,ptr,size,retval) \ do { \ retval = 0; \ + x = 0; \ switch (size) { \ case 1: \ retval = __get_user_asm_b((void *)&x, \ |