if(!wait_for_completion_interruptible_timeout(...))
only handles the timeout case - this patch adds handling the
signal case the same as timeout.
Signed-off-by: Nicholas Mc Guire <der.h...@hofr.at>
---
Only the timeout case was being handled, the signal case
(-ERESTARTSYS) was treated just like the case of successful
completion, which is most likely not reasonable.
read_local_version() is called from download_firmware() where
it checks for !=0 return, so the error handling logic should be
preserved correctly.
download_firmware() is called from st_kim_start() which is
checking for !=0 return, so the error handling logic should be
preserved correctly
This patch was only compile tested for i368_defconfig +
CONFIG_X86_32_NON_STANDARD=y CONFIG_STA2X11=y CONFIG_TI_ST=m
This patch is against 3.19.0-rc5 -next-20150119
drivers/misc/ti-st/st_kim.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 7109d28..623071c 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -219,6 +219,7 @@ static long read_local_version(struct kim_data_s
*kim_gdata, char *bts_scr_name)
{
unsigned short version = 0, chip = 0, min_ver = 0, maj_ver = 0;
const char read_ver_cmd[] = { 0x01, 0x01, 0x10, 0x00 };
+ long timeout;
pr_debug("%s", __func__);
@@ -228,10 +229,11 @@ static long read_local_version(struct kim_data_s
*kim_gdata, char *bts_scr_name)
return -EIO;
}
- if (!wait_for_completion_interruptible_timeout(
- &kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
- pr_err(" waiting for ver info- timed out ");
- return -ETIMEDOUT;
+ timeout = wait_for_completion_interruptible_timeout(
+ &kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));
+ if (timeout <= 0) {
+ pr_err(" waiting for ver info- timed out or received signal");
+ return timeout ? -ERESTARTSYS : -ETIMEDOUT;
}
reinit_completion(&kim_gdata->kim_rcvd);
/* the positions 12 & 13 in the response buffer provide with the
@@ -395,13 +397,14 @@ static long download_firmware(struct kim_data_s
*kim_gdata)
break;
case ACTION_WAIT_EVENT: /* wait */
pr_debug("W");
- if (!wait_for_completion_interruptible_timeout(
+ err = wait_for_completion_interruptible_timeout(
&kim_gdata->kim_rcvd,
- msecs_to_jiffies(CMD_RESP_TIME))) {
- pr_err("response timeout during fw download ");
+ msecs_to_jiffies(CMD_RESP_TIME));
+ if (err <= 0) {
+ pr_err("response timeout/signaled during fw
download ");
/* timed out */
release_firmware(kim_gdata->fw_entry);
- return -ETIMEDOUT;
+ return err ? -ERESTARTSYS : -ETIMEDOUT;
}
reinit_completion(&kim_gdata->kim_rcvd);
break;
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
