Hi,
On Tue, Jan 04, 2011 at 01:29:02AM +0000, Chris Ball wrote:
> Thanks! Pushed to mmc-next for .38, after adding Reviewed-by: tags and
> removing the mmc_bus_{put,get}() comment, since I'll take care of that
> separately.
And here's the comment patch:
From: Chris Ball <[email protected]>
Date: Tue, 4 Jan 2011 12:20:22 -0500
Subject: [PATCH] mmc: Explain why we make adjacent mmc_bus_{put,get} calls
during rescan.
Signed-off-by: Chris Ball <[email protected]>
---
drivers/mmc/core/core.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 286e6ce..b8e3b97 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1529,13 +1529,15 @@ void mmc_rescan(struct work_struct *work)
*/
if (host->bus_ops && host->bus_ops->detect && !host->bus_dead
&& mmc_card_is_removable(host))
host->bus_ops->detect(host);
+ /*
+ * Let mmc_bus_put() free the bus/bus_ops if we've found that
+ * the card is no longer present.
+ */
mmc_bus_put(host);
-
-
mmc_bus_get(host);
/* if there still is a card present, stop here */
if (host->bus_ops != NULL) {
mmc_bus_put(host);
--
Chris Ball <[email protected]> <http://printf.net/>
One Laptop Per Child
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