diff options
| author | Weijie Yang <[email protected]> | 2014-11-13 15:19:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2014-11-13 16:17:05 -0800 |
| commit | c406515239376fc93a30d5d03192182160cbd3fb (patch) | |
| tree | 41269ecf1d06e46fce5164d02b0b29ca78e8976e /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | 2c54396e40c79876a7ddfd3231c81eedf639795b (diff) | |
zram: avoid kunmap_atomic() of a NULL pointer
zram could kunmap_atomic() a NULL pointer in a rare situation: a zram
page becomes a full-zeroed page after a partial write io. The current
code doesn't handle this case and performs kunmap_atomic() on a NULL
pointer, which panics the kernel.
This patch fixes this issue.
Signed-off-by: Weijie Yang <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Dan Streetman <[email protected]>
Cc: Nitin Gupta <[email protected]>
Cc: Weijie Yang <[email protected]>
Acked-by: Jerome Marchand <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions