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| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | 2016-04-12 12:58:14 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-04-13 08:12:41 +0100 |
| commit | 1ff7760ff66b98ef244bf0e5e2bd5310651205ad (patch) | |
| tree | fd7a3c5af84df055ec34c5de017819d20f6b0b38 /Documentation/irqflags-tracing.txt | |
| parent | ea1b60fb085839a9544cb3a0069992991beabb7f (diff) | |
spi: spi-ti-qspi: Handle truncated frames properly
We clamp frame_len_words to a maximum of 4096, but do not actually
limit the number of words written or read through the DATA registers
or the length added to spi_message::actual_length. This results in
silent data corruption for commands longer than this maximum.
Recalculate the length of each transfer, taking frame_len_words into
account. Use this length in qspi_{read,write}_msg(), and to increment
spi_message::actual_length.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'Documentation/irqflags-tracing.txt')