Weijie Yang c406515239 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]>

2014-11-13 16:17:05 -08:00

..

aoe

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drbd

drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks

2014-09-18 09:00:17 -06:00

mtip32xx

Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block

2014-10-18 12:12:45 -07:00

paride

Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block

2014-10-18 11:53:51 -07:00

rsxx

Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block

2014-10-18 12:12:45 -07:00

xen-blkback

Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block

2014-10-18 12:12:45 -07:00

zram

zram: avoid kunmap_atomic() of a NULL pointer

2014-11-13 16:17:05 -08:00

amiflop.c

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ataflop.c

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brd.c

brd: add ram disk visibility option

2014-08-21 20:42:01 -05:00

cciss_cmd.h

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cciss_scsi.c

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cciss_scsi.h

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cciss.c

block: use pci_zalloc_consistent

2014-08-08 15:57:28 -07:00

cciss.h

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cpqarray.c

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cpqarray.h

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cryptoloop.c

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DAC960.c

block: use pci_zalloc_consistent

2014-08-08 15:57:28 -07:00

DAC960.h

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floppy.c

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hd.c

block: hd: remove deprecated IRQF_DISABLED

2014-10-01 08:16:07 -06:00

ida_cmd.h

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ida_ioctl.h

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Kconfig

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loop.c

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loop.h

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Makefile

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mg_disk.c

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nbd.c

block: disable entropy contributions for nonrot devices

2014-10-04 10:55:32 -06:00

null_blk.c

null_blk: Cleanup error recovery in null_add_dev()

2014-10-22 07:59:25 -06:00

nvme-core.c

block: disable entropy contributions for nonrot devices

2014-10-04 10:55:32 -06:00

nvme-scsi.c

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osdblk.c

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pktcdvd.c

block,scsi: fixup blk_get_request dead queue scenarios

2014-08-28 10:03:46 -06:00

ps3disk.c

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ps3vram.c

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rbd_types.h

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rbd.c

rbd: Fix error recovery in rbd_obj_read_sync()

2014-10-30 13:11:51 +03:00

skd_main.c

block: disable entropy contributions for nonrot devices

2014-10-04 10:55:32 -06:00

skd_s1120.h

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smart1,2.h

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sunvdc.c

sunvdc: don't call VD_OP_GET_VTOC

2014-10-31 15:49:45 -04:00

swim3.c

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swim_asm.S

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swim.c

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sx8.c

block,scsi: fixup blk_get_request dead queue scenarios

2014-08-28 10:03:46 -06:00

umem.c

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umem.h

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virtio_blk.c

Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block

2014-10-18 11:53:51 -07:00

xen-blkfront.c

Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block

2014-10-18 12:12:45 -07:00

xsysace.c

block: systemace: Remove .owner field for driver

2014-08-21 20:37:54 -05:00

z2ram.c

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