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centosplus kernel patch [bug#12841]
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commit b0120d9906253570f593daf82016a5331bbee2b8
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Author: Cathy Avery <cavery@redhat.com>
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Date: Wed Nov 23 08:46:33 2016 -0500
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scsi: storvsc: Payload buffer incorrectly sized for 32 bit kernels.
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On a 32 bit kernel sizeof(void *) is not 64 bits as hv_mpb_array
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requires. Also the buffer needs to be cleared or the upper bytes will
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contain junk.
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Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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Signed-off-by: Cathy Avery <cavery@redhat.com>
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Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
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Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Applied-by: Akemi Yagi <toracat@centos.org>
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diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
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index 8ccfc9e..05526b7 100644
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--- a/drivers/scsi/storvsc_drv.c
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+++ b/drivers/scsi/storvsc_drv.c
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@@ -1495,9 +1495,9 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
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if (sg_count) {
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if (sg_count > MAX_PAGE_BUFFER_COUNT) {
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- payload_sz = (sg_count * sizeof(void *) +
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+ payload_sz = (sg_count * sizeof(u64) +
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sizeof(struct vmbus_packet_mpb_array));
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- payload = kmalloc(payload_sz, GFP_ATOMIC);
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+ payload = kzalloc(payload_sz, GFP_ATOMIC);
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if (!payload)
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return SCSI_MLQUEUE_DEVICE_BUSY;
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}
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