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| author |   Andrey Ryabinin <a.ryabinin@samsung.com> | 2014-05-07 08:07:25 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-05-25 23:44:25 +0100 |
| commit | 537094b64b229bf3ad146042f83e74cf6abe59df (patch) | |
| tree | 746795d32d38c8c0affefa22c6c1154d2ddd4e32 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | ARM: 8048/1: fix v7-M setup stack location (diff) | |
| download | linux-dev-537094b64b229bf3ad146042f83e74cf6abe59df.tar.xz linux-dev-537094b64b229bf3ad146042f83e74cf6abe59df.zip | |
ARM: 8051/1: put_user: fix possible data corruption in put_user
According to arm procedure call standart r2 register is call-cloberred.
So after the result of x expression was put into r2 any following
function call in p may overwrite r2. To fix this, the result of p
expression must be saved to the temporary variable before the
assigment x expression to __r2.
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions