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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-21 23:33:47 -0400 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-10-05 22:40:20 -0400 |
| commit | 94000fc8f4ab34b031caecdfcc767f478900a7bb (patch) | |
| tree | 0234b3bbbec39b9d864623112844d1ae74b0cf84 | |
| parent | c1c77a5f1371315e5ee0686ad38ee6826cd458bd (diff) | |
| download | lwn-94000fc8f4ab34b031caecdfcc767f478900a7bb.tar.gz lwn-94000fc8f4ab34b031caecdfcc767f478900a7bb.zip | |
sh64: failing __get_user() should zero
[ Upstream commit c6852389228df9fb3067f94f3b651de2a7921b36 ]
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.
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
| -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 2e07e0f40c6a..a2f9d0531328 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, \ |