[PATCH v1] gpiolib: Update indentation in driver.rst for code excerpts

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

When TABs are being used to indent the code excerpts inside
the bullet lists some of the tools fail to recognize it and
continue interpreting the special characters inside
the quoted excerpt.

Update indentation in driver.rst for code excerpts to avoid
their special interpretation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 Documentation/driver-api/gpio/driver.rst | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst
index 9809f593c0ab..072a7455044e 100644
--- a/Documentation/driver-api/gpio/driver.rst
+++ b/Documentation/driver-api/gpio/driver.rst
@@ -342,12 +342,12 @@ Cascaded GPIO irqchips usually fall in one of three categories:
   forced to a thread. The "fake?" raw lock can be used to work around this
   problem::
 
-	raw_spinlock_t wa_lock;
-	static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
-		unsigned long wa_lock_flags;
-		raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags);
-		generic_handle_irq(irq_find_mapping(bank->chip.irq.domain, bit));
-		raw_spin_unlock_irqrestore(&bank->wa_lock, wa_lock_flags);
+    raw_spinlock_t wa_lock;
+    static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
+        unsigned long wa_lock_flags;
+        raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags);
+        generic_handle_irq(irq_find_mapping(bank->chip.irq.domain, bit));
+        raw_spin_unlock_irqrestore(&bank->wa_lock, wa_lock_flags);
 
 - GENERIC CHAINED GPIO IRQCHIPS: these are the same as "CHAINED GPIO irqchips",
   but chained IRQ handlers are not used. Instead GPIO IRQs dispatching is
-- 
2.28.0