kernel/linux.git/drivers/staging, branch v4.11.5

staging/lustre/lov: remove set_fs() call from lov_getstripe()

2017-06-14T13:07:43+00:00

commit 0a33252e060e97ed3fbdcec9517672f1e91aaef3 upstream. lov_getstripe() calls set_fs(KERNEL_DS) so that it can handle a struct lov_user_md pointer from user- or kernel-space. This changes the behavior of copy_from_user() on SPARC and may result in a misaligned access exception which in turn oopses the kernel. In fact the relevant argument to lov_getstripe() is never called with a kernel-space pointer and so changing the address limits is unnecessary and so we remove the calls to save, set, and restore the address limits. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/6150 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3221 Reviewed-by: Andreas Dilger Reviewed-by: Li Wei Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman

staging: rtl8192e: GetTs Fix invalid TID 7 warning.

2017-05-25T13:46:26+00:00

commit 95d93e271d920dfda369d4740b1cc1061d41fe7f upstream. TID 7 is a valid value for QoS IEEE 802.11e. The switch statement that follows states 7 is valid. Remove function IsACValid and use the default case to filter invalid TIDs. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman

staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.

2017-05-25T13:46:26+00:00

commit 90be652c9f157d44b9c2803f902a8839796c090d upstream. EPROM_CMD is 2 byte aligned on PCI map so calling with rtl92e_readl will return invalid data so use rtl92e_readw. The device is unable to select the right eeprom type. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman

staging: rtl8192e: fix 2 byte alignment of register BSSIDR.

2017-05-25T13:46:26+00:00

commit 867510bde14e7b7fc6dd0f50b48f6753cfbd227a upstream. BSSIDR has two byte alignment on PCI ioremap correct the write by swapping to 16 bits first. This fixes a problem that the device associates fail because the filter is not set correctly. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman

staging: rtl8192e: rtl92e_fill_tx_desc fix write to mapped out memory.

2017-05-25T13:46:25+00:00

commit baabd567f87be05330faa5140f72a91960e7405a upstream. The driver attempts to alter memory that is mapped to PCI device. This is because tx_fwinfo_8190pci points to skb->data Move the pci_map_single to when completed buffer is ready to be mapped with psdec is empty to drop on mapping error. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman

staging: vc04_services: Fix bulk cache maintenance

2017-05-25T13:46:25+00:00

commit ff92b9e3c9f85fa442c430d70bf075499e1193b7 upstream. vchiq_arm supports transfers less than one page and at arbitrary alignment, using the dma-mapping API to perform its cache maintenance (even though the VPU drives the DMA hardware). Read (DMA_FROM_DEVICE) operations use cache invalidation for speed, falling back to clean+invalidate on partial cache lines, with writes (DMA_TO_DEVICE) using flushes. If a read transfer has ends which aren't page-aligned, performing cache maintenance as if they were whole pages can lead to memory corruption since the partial cache lines at the ends (and any cache lines before or after the transfer area) will be invalidated. This bug was masked until the disabling of the cache flush in flush_dcache_page(). Honouring the requested transfer start- and end-points prevents the corruption. Fixes: cf9caf192988 ("staging: vc04_services: Replace dmac_map_area with dmac_map_sg") Signed-off-by: Phil Elwell Reported-by: Stefan Wahren Tested-by: Stefan Wahren Signed-off-by: Greg Kroah-Hartman

staging: comedi: jr3_pci: cope with jiffies wraparound

2017-05-20T12:49:41+00:00

commit 8ec04a491825e08068e92bed0bba7821893b6433 upstream. The timer expiry routine `jr3_pci_poll_dev()` checks for expiry by checking whether the absolute value of `jiffies` (stored in local variable `now`) is greater than the expected expiry time in jiffy units. This will fail when `jiffies` wraps around. Also, it seems to make sense to handle the expiry one jiffy earlier than the current test. Use `time_after_eq()` to check for expiry. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman

staging: comedi: jr3_pci: fix possible null pointer dereference

2017-05-20T12:49:41+00:00

commit 45292be0b3db0b7f8286683b376e2d9f949d11f9 upstream. For some reason, the driver does not consider allocation of the subdevice private data to be a fatal error when attaching the COMEDI device. It tests the subdevice private data pointer for validity at certain points, but omits some crucial tests. In particular, `jr3_pci_auto_attach()` calls `jr3_pci_alloc_spriv()` to allocate and initialize the subdevice private data, but the same function subsequently dereferences the pointer to access the `next_time_min` and `next_time_max` members without checking it first. The other missing test is in the timer expiry routine `jr3_pci_poll_dev()`, but it will crash before it gets that far. Fix the bug by returning `-ENOMEM` from `jr3_pci_auto_attach()` as soon as one of the calls to `jr3_pci_alloc_spriv()` returns `NULL`. The COMEDI core will subsequently call `jr3_pci_detach()` to clean up. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman

staging: sir: fill in missing fields and fix probe

2017-05-20T12:49:41+00:00

commit cf9ed9aa5b0c196b796d2728218e3c06b0f42d90 upstream. Some fields are left blank. Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman

staging: wilc1000: Fix problem with wrong vif index

2017-05-20T12:49:41+00:00

commit 0e490657c7214cce33fbca3d88227298c5c968ae upstream. The vif->idx value is always 0 for two interfaces. wl->vif_num = 0; loop { ... vif->idx = wl->vif_num; ... wl->vif_num = i; .... i++; ... } At present, vif->idx is assigned the value of wl->vif_num at the beginning of this block and device is initialized based on this index value. In the next iteration, wl->vif_num is still 0 as it is only updated later but gets assigned to vif->idx in the beginning. This causes problems later when we try to reference a particular interface and also while configuring the firmware. This patch moves the assignment to vif->idx from the beginning of the block to after wl->vif_num is updated with latest value of i. Fixes: commit 735bb39ca3be ("staging: wilc1000: simplify vif[i]->ndev accesses") Signed-off-by: Aditya Shankar Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman