From: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
To: i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
Cc: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
Subject: I2C: S3C2410: Fixup error codes returned rom a transfer.
Date: Mon, 02 Jun 2008 20:27:34 +0100 [thread overview]
Message-ID: <20080602192733.802003003@fluff.org.uk> (raw)
[-- Attachment #1: simtec/simtec-drivers-i2c-s3c2410-error-code-fix.patch --]
[-- Type: text/plain, Size: 1613 bytes --]
The driver should be returning -ENXIO for transfers that do not
pass the initial address byte stage.
Note, also small tidyups to the driver comments in the area.
Signed-off-by: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
Index: linux-2.6.26-rc4-quilt3/drivers/i2c/busses/i2c-s3c2410.c
===================================================================
--- linux-2.6.26-rc4-quilt3.orig/drivers/i2c/busses/i2c-s3c2410.c 2008-06-02 20:19:14.000000000 +0100
+++ linux-2.6.26-rc4-quilt3/drivers/i2c/busses/i2c-s3c2410.c 2008-06-02 20:20:02.000000000 +0100
@@ -290,12 +290,12 @@ static int i2s_s3c_irq_nextbyte(struct s
* bus, or started a new i2c message
*/
- if (iicstat & S3C2410_IICSTAT_LASTBIT &&
+ if (iicstat & S3C2410_IICSTAT_LASTBIT &&
!(i2c->msg->flags & I2C_M_IGNORE_NAK)) {
/* ack was not received... */
dev_dbg(i2c->dev, "ack was not received\n");
- s3c24xx_i2c_stop(i2c, -EREMOTEIO);
+ s3c24xx_i2c_stop(i2c, -ENXIO);
goto out_ack;
}
@@ -305,7 +305,7 @@ static int i2s_s3c_irq_nextbyte(struct s
i2c->state = STATE_WRITE;
/* terminate the transfer if there is nothing to do
- * (used by the i2c probe to find devices */
+ * as this is used by the i2c probe to find devices. */
if (is_lastmsg(i2c) && i2c->msg->len == 0) {
s3c24xx_i2c_stop(i2c, 0);
--
Ben (ben-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org, http://www.fluff.org/)
'a smiley only costs 4 bytes'
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next reply other threads:[~2008-06-02 19:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-02 19:27 Ben Dooks [this message]
[not found] ` <20080602192733.802003003-elnMNo+KYs3pIgCt6eIbzw@public.gmane.org>
2008-06-03 15:28 ` I2C: S3C2410: Fixup error codes returned rom a transfer Jean Delvare
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