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| author | Paul E. McKenney <[email protected]> | 2013-10-01 17:11:35 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <[email protected]> | 2013-10-03 17:22:42 +1000 |
| commit | 8f21bd0090052e740944f9397e2be5ac7957ded7 (patch) | |
| tree | aa921309910569b6432d977c88af5c561417c100 /tools/perf/util/trace-event-scripting.c | |
| parent | d9813c3681a36774b254c0cdc9cce53c9e22c756 (diff) | |
powerpc: Restore registers on error exit from csum_partial_copy_generic()
The csum_partial_copy_generic() function saves the PowerPC non-volatile
r14, r15, and r16 registers for the main checksum-and-copy loop.
Unfortunately, it fails to restore them upon error exit from this loop,
which results in silent corruption of these registers in the presumably
rare event of an access exception within that loop.
This commit therefore restores these register on error exit from the loop.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Anton Blanchard <[email protected]>
Cc: [email protected]
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions