Minfei Huang
347a529398
virtio_blk: Fix a slient kernel panic ...
We do a lot of memory allocation in function init_vq, and don't handle
the allocation failure properly. Then this function will return 0,
although initialization fails due to lacking memory. At that moment,
kernel will panic in guest machine, if virtio is used to drive disk.
To fix this bug, we should take care of allocation failure, and return
correct value to let caller know what happen.
Tested-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
Signed-off-by: Minfei Huang <mnghuan@gmail.com>
Signed-off-by: Minfei Huang <minfei.hmf@alibaba-inc.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-09 13:42:39 +03:00
tree wide: get rid of __GFP_REPEAT for order-0 allocations part I
2016-06-24 17:23:52 -07:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
paride: make 'verbose' parameter an 'int' again
2016-03-15 16:55:16 -07:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
xen: features and fixes for 4.8-rc0
2016-07-27 11:35:37 -07:00
block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07 14:41:02 -06:00
block: drop owner assignment from platform_drivers
2014-10-20 16:20:18 +02:00
Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next
2014-06-02 09:29:34 -07:00
block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07 14:41:02 -06:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
scsi: Do not set cmd_per_lun to 1 in the host template
2015-05-31 18:06:28 -07:00
block: cryptoloop - Use new skcipher interface
2016-01-27 20:35:43 +08:00
block: use pci_zalloc_consistent
2014-08-08 15:57:28 -07:00
floppy: fix open(O_ACCMODE) for ioctl-only open
2016-08-04 14:19:16 -06:00
block: hd: remove deprecated IRQF_DISABLED
2014-10-01 08:16:07 -06:00
cpqarray: remove it from the kernel
2016-03-14 09:06:01 -06:00
loop: make do_req_filebacked more robust
2016-08-04 14:19:16 -06:00
block: loop: support DIO & AIO
2015-09-23 11:01:16 -06:00
drivers:block: cpqarray clean up
2016-03-15 15:59:47 -07:00
mg_disk: fix error path in mg_probe()
2016-06-28 11:01:27 -06:00
nbd: fix race in ioctl
2016-08-04 14:19:16 -06:00
block: get rid of bio_rw and READA
2016-07-20 17:37:01 -06:00
block, drivers: add REQ_OP_FLUSH operation
2016-06-07 13:41:38 -06:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
The highlights are:
2016-08-02 19:39:09 -04:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
block: convert to device_add_disk()
2016-06-27 12:26:08 -07:00
block: drop owner assignment from platform_drivers
2014-10-20 16:20:18 +02:00
powerpc: Move Power Macintosh drivers to generic byteswappers
2015-03-23 14:29:40 +11:00
sx8: use real time for the command seconds
2015-12-23 08:42:59 -07:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
virtio_blk: Fix a slient kernel panic
2016-08-09 13:42:39 +03:00
xen: features and fixes for 4.8-rc0
2016-07-27 11:35:37 -07:00
block: systemace: Remove .owner field for driver
2014-08-21 20:37:54 -05:00
block: remove struct request buffer member
2014-04-15 14:03:02 -06:00
347a529398