From 142e30fcaa1c3a63a1f0baf0b802ef888a0c250b Mon Sep 17 00:00:00 2001 From: Carl-Daniel Hailfinger Date: Tue, 14 Jul 2009 10:26:56 +0000 Subject: Use a distinct return code for SPI commands with unsupported/invalid length Some drivers support only a few combinations of read/write length and return error otherwise. Having a distinct return code for this error means we can handle it in upper layers. Corresponding to flashrom svn r653. Signed-off-by: Carl-Daniel Hailfinger Acked-by: Stefan Reinauer --- wbsio_spi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'wbsio_spi.c') diff --git a/wbsio_spi.c b/wbsio_spi.c index 7876198..ded0840 100644 --- a/wbsio_spi.c +++ b/wbsio_spi.c @@ -154,7 +154,8 @@ int wbsio_spi_send_command(unsigned int writecnt, unsigned int readcnt, if (!mode) { fprintf(stderr, "%s: unsupported command type wr=%d rd=%d\n", __func__, writecnt, readcnt); - return 1; + /* Command type refers to the number of bytes read/written. */ + return SPI_INVALID_LENGTH; } OUTB(writearr[0], wbsio_spibase); -- cgit v1.1