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sd: Don't trace SDRequest crc field

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We don't actually implement SD command CRC checking, because
for almost all of our SD controllers the CRC generation is
done in hardware, and so modelling CRC generation and checking
would be a bit pointless. (The exception is that milkymist-memcard
makes the guest software compute the CRC.)

As a result almost all of our SD controller models don't bother
to set the SDRequest crc field, and the SD card model doesn't
check it. So the tracing of it in sdbus_do_command() provokes
Coverity warnings about use of uninitialized data.

Drop the CRC field from the trace; we can always add it back
if and when we do anything useful with the CRC.

Fixes Coverity issues 1386072, 1386074, 1386076, 1390571.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180626180324.5537-1-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2018-06-29 15:11:19 +01:00
parent b7d793ad3d
commit 13606b9951
2 changed files with 2 additions and 2 deletions
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2
hw/sd/core.c
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@ -91,7 +91,7 @@ int sdbus_do_command(SDBus *sdbus, SDRequest *req, uint8_t *response)
{
SDState *card = get_card(sdbus);
trace_sdbus_command(sdbus_name(sdbus), req->cmd, req->arg, req->crc);
trace_sdbus_command(sdbus_name(sdbus), req->cmd, req->arg);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);