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  1. 26 6月, 2013 1 次提交
  3. 22 6月, 2013 1 次提交
  5. 19 6月, 2013 1 次提交
  7. 07 6月, 2013 4 次提交
  9. 05 6月, 2013 1 次提交
  11. 04 6月, 2013 7 次提交
  13. 02 6月, 2013 1 次提交
  15. 24 5月, 2013 1 次提交
  17. 22 5月, 2013 5 次提交
  19. 12 5月, 2013 2 次提交
  21. 01 5月, 2013 2 次提交
  23. 30 4月, 2013 4 次提交
  25. 16 4月, 2013 1 次提交
    • S
      regmap: don't corrupt work buffer in _regmap_raw_write() · 5a08d156
      由 Stephen Warren 提交于 
      _regmap_raw_write() contains code to call regcache_write() to write
values to the cache. That code calls memcpy() to copy the value data to
the start of the work_buf. However, at least when _regmap_raw_write() is
called from _regmap_bus_raw_write(), the value data is in the work_buf,
and this memcpy() operation may over-write part of that value data,
depending on the value of reg_bytes + pad_bytes. At least when using
reg_bytes==1 and pad_bytes==0, corruption of the value data does occur.

To solve this, remove the memcpy() operation, and modify the subsequent
.parse_val() call to parse the original value buffer directly.

At least in the case of 8-bit register address and 16-bit values, and
writes of single registers at a time, this memcpy-then-parse combination
used to cancel each-other out; for a work-buffer containing xx 89 03,
the memcpy changed it to 89 03 03, and the parse_val changed it back to
89 89 03, thus leaving the value uncorrupted. This appears completely
accidental though. Since commit 8a819ff8 "regmap: core: Split out in
place value parsing", .parse_val only returns the parsed value, and does
not modify the buffer, and hence does not (accidentally) undo the
corruption caused by memcpy(). This caused bogus values to get written
to HW, thus preventing e.g. audio playback on systems with a WM8903
CODEC. This patch fixes that.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      5a08d156
  27. 12 4月, 2013 5 次提交
  29. 11 4月, 2013 2 次提交
  31. 10 4月, 2013 1 次提交
    • M
      regmap: Back out work buffer fix · 51a246aa
      由 Mark Brown 提交于 
      This reverts commit bc8ce4 (regmap: don't corrupt work buffer in
_regmap_raw_write()) since it turns out that it can cause issues when
taken in isolation from the other changes in -next that lead to its
discovery.  On the basis that nobody noticed the problems for quite some
time without that subsequent work let's drop it from v3.9.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      51a246aa
  33. 08 4月, 2013 1 次提交
    • K
      driver core: add uid and gid to devtmpfs · 3c2670e6
      由 Kay Sievers 提交于 
      Some drivers want to tell userspace what uid and gid should be used for
their device nodes, so allow that information to percolate through the
driver core to userspace in order to make this happen.  This means that
some systems (i.e.  Android and friends) will not need to even run a
udev-like daemon for their device node manager and can just rely in
devtmpfs fully, reducing their footprint even more.
Signed-off-by: NKay Sievers <kay@vrfy.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      3c2670e6