+ drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation.patch added to -mm tree

+ drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation.patch added to -mm tree

[akpm]

The patch titled
     drivers/mmc/host/imxmmc.c: adjust confusing if indentation
has been added to the -mm tree.  Its filename is
     drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: drivers/mmc/host/imxmmc.c: adjust confusing if indentation
From: Julia Lawall <julia@diku.dk>

Move the second if (reg & ...) test into the branch indicated by its
indentation.  The test was previously always executed after the if
containing that branch, but it was always false unless the if branch was
taken.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable braces4@
position p1,p2;
statement S1,S2;
@@

(
if (...) { ... }
|
if (...) S1@p1 S2@p2
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

if (p1[0].column == p2[0].column):
  cocci.print_main("branch",p1)
  cocci.print_secs("after",p2)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Chris Ball <cjb@laptop.org>
Cc: Pavel Pisa <ppisa@pikron.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/mmc/host/imxmmc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN drivers/mmc/host/imxmmc.c~drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation drivers/mmc/host/imxmmc.c
--- a/drivers/mmc/host/imxmmc.c~drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation
+++ a/drivers/mmc/host/imxmmc.c
@@ -148,11 +148,12 @@ static int imxmci_start_clock(struct imx
 
 		while (delay--) {
 			reg = readw(host->base + MMC_REG_STATUS);
-			if (reg & STATUS_CARD_BUS_CLK_RUN)
+			if (reg & STATUS_CARD_BUS_CLK_RUN) {
 				/* Check twice before cut */
 				reg = readw(host->base + MMC_REG_STATUS);
 				if (reg & STATUS_CARD_BUS_CLK_RUN)
 					return 0;
+			}
 
 			if (test_bit(IMXMCI_PEND_STARTED_b, &host->pending_events))
 				return 0;
_

Patches currently in -mm which might be from julia@diku.dk are

origin.patch
linux-next.patch
drivers-mmc-host-imxmmcc-adjust-confusing-if-indentation.patch
fs-btrfs-use-memdup_user.patch
fs-btrfs-use-err_cast.patch