lkml.org 
[lkml]   [2017]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V15 14/22] mmc: block: Check the timeout correctly in card_busy_detect()
Date
Pedantically, ensure the status is checked for the last time after the full
timeout has passed.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
drivers/mmc/core/block.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index c446d17b48c4..f7c387c27ac0 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -931,6 +931,8 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
u32 status;

do {
+ bool done = time_after(jiffies, timeout);
+
err = __mmc_send_status(card, &status, 5);
if (err) {
pr_err("%s: error %d requesting status\n",
@@ -951,7 +953,7 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
* Timeout if the device never becomes ready for data and never
* leaves the program state.
*/
- if (time_after(jiffies, timeout)) {
+ if (done) {
pr_err("%s: Card stuck in programming state! %s %s\n",
mmc_hostname(card->host),
req->rq_disk->disk_name, __func__);
--
1.9.1
\
 
 \ /
  Last update: 2017-11-29 14:46    [W:0.838 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site