* Linus Walleij [off-list ref] [150716 01:38]:

On Wed, Jun 24, 2015 at 4:54 PM, Grygorii Strashko
[off-list ref] wrote:

quoted

From: Grygorii Strashko <redacted>

Add missed spin_unlock_irqrestore in omap_gpio_irq_type when
omap_set_gpio_triggering() is failed.

It fixes static checker warning:

        drivers/gpio/gpio-omap.c:523 omap_gpio_irq_type()
        warn: inconsistent returns 'spin_lock:&bank->lock'.

This fixes commit:
1562e4618ded ('gpio: omap: fix error handling in omap_gpio_irq_type')

Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Grygorii Strashko <redacted>

Patch applied for fixes.

Linus, looks like we now have a new build warning in Linux next
with the fixes and raw_spinlock_t change, so a merge or a commit
is needed. If you prefer a patch, here's one below.

Regards,

Tony

8< ---------------
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 6 Aug 2015 20:32:24 -0700
Subject: [PATCH] gpio: omap: Fix build warning for raw_spinlock_t conversion
 and unlock fix
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Looks like we now have a new build warning in Linux next with fix
977bd8a94c40 ("gpio: omap: add missed spin_unlock_irqrestore in
omap_gpio_irq_type") and raw_spinlock changes done in commit
4dbada2be460 ("gpio: omap: use raw locks for locking"):

drivers/gpio/gpio-omap.c: In function ‘omap_gpio_irq_type’:
drivers/gpio/gpio-omap.c:504:26: warning: passing argument 1 of
‘spin_unlock_irqrestore’ from incompatible pointer type
[-Wincompatible-pointer-types]
   spin_unlock_irqrestore(&bank->lock, flags);
                          ^
In file included from include/linux/seqlock.h:35:0,
                 from include/linux/time.h:5,
                 from include/linux/stat.h:18,
                 from include/linux/module.h:10,
                 from drivers/gpio/gpio-omap.c:16:
include/linux/spinlock.h:370:122: note: expected
‘spinlock_t * {aka struct spinlock *}’ but argument is of type
‘raw_spinlock_t * {aka struct raw_spinlock *}’

Fix the issue with using raw_spinlock_t instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>

--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c

@@ -501,7 +501,7 @@ static int omap_gpio_irq_type(struct irq_data *d, unsigned type)
 	raw_spin_lock_irqsave(&bank->lock, flags);
 	retval = omap_set_gpio_triggering(bank, offset, type);
 	if (retval) {
-		spin_unlock_irqrestore(&bank->lock, flags);
+		raw_spin_unlock_irqrestore(&bank->lock, flags);
 		goto error;
 	}
 	omap_gpio_init_irq(bank, offset);
--

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