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| author | Geert Uytterhoeven <geert+renesas@linux-m68k.org> | 2014-01-28 10:33:03 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-01-28 17:48:40 +0000 |
| commit | 1f802f8249a0da536877842c43c7204064c4de8b (patch) | |
| tree | df680aa6e3b29bb101dd5f9dde26a51e63e09568 /Documentation | |
| parent | 8b8b773e6b611e6629ac01f85d401c949d153546 (diff) | |
| download | op-kernel-dev-1f802f8249a0da536877842c43c7204064c4de8b.zip op-kernel-dev-1f802f8249a0da536877842c43c7204064c4de8b.tar.gz | |
spi: Fix crash with double message finalisation on error handling
This reverts commit e120cc0dcf2880a4c5c0a6cb27b655600a1cfa1d.
It causes a NULL pointer dereference with drivers using the generic
spi_transfer_one_message(), which always calls
spi_finalize_current_message(), which zeroes master->cur_msg.
Drivers implementing transfer_one_message() theirselves must always call
spi_finalize_current_message(), even if the transfer failed:
* @transfer_one_message: the subsystem calls the driver to transfer a single
* message while queuing transfers that arrive in the meantime. When the
* driver is finished with this message, it must call
* spi_finalize_current_message() so the subsystem can issue the next
* transfer
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions
