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| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2015-12-08 15:37:19 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-12-15 14:51:42 +0300 |
| commit | 34bfbae33ae84107d0c257edd6c6a8689a09be26 (patch) | |
| tree | 5d8fbefb9caa76e73a8077217242883dd74a6945 /lib | |
| parent | fa0708b320f6da4c1104fe56e01b7abf66fd16ad (diff) | |
| download | linux-34bfbae33ae84107d0c257edd6c6a8689a09be26.tar.xz | |
ARM: 8475/1: SWP emulation: Restore original *data when failed
__user_swpX_asm maybe failed in first STREX operation, emulate_swpX
will try again, but the *data has been changed in first time. which
causes the result is wrong.
This patch is to fix this issue. When STREX succeed, change the *data.
if it fail, *data is not changed.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions