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authorLinus Torvalds <torvalds@linux-foundation.org>2014-11-13 16:57:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-11-13 16:57:25 -0800
commit971ad4e4d6833d5f250d0db332ff863c599ae19f (patch)
treeb618d2007229bd8972d685c98b9cbd739f96b979 /drivers
parentb0ab3f190e7331a83b397a0e772cbc01bf18201f (diff)
parent8fe671fc0b9f5a0d013153a9ddbd979d6eff0547 (diff)
Merge branch 'akpm' (fixes from Andrew Morton)
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: MAINTAINERS: add IIO include files kernel/panic.c: update comments for print_tainted mem-hotplug: reset node present pages when hot-adding a new pgdat mem-hotplug: reset node managed pages when hot-adding a new pgdat mm/debug-pagealloc: correct freepage accounting and order resetting fanotify: fix notification of groups with inode & mount marks mm, compaction: prevent infinite loop in compact_zone mm: alloc_contig_range: demote pages busy message from warn to info mm/slab: fix unalignment problem on Malta with EVA due to slab merge mm/page_alloc: restrict max order of merging on isolated pageblock mm/page_alloc: move freepage counting logic to __free_one_page() mm/page_alloc: add freepage on isolate pageblock to correct buddy list mm/page_alloc: fix incorrect isolation behavior by rechecking migratetype mm/compaction: skip the range until proper target pageblock is met zram: avoid kunmap_atomic() of a NULL pointer
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/zram/zram_drv.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 2ad0b5bce44b..3920ee45aa59 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -560,7 +560,8 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
}
if (page_zero_filled(uncmem)) {
- kunmap_atomic(user_mem);
+ if (user_mem)
+ kunmap_atomic(user_mem);
/* Free memory associated with this sector now. */
bit_spin_lock(ZRAM_ACCESS, &meta->table[index].value);
zram_free_page(zram, index);

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