uio: Cleanup irq handling.
Change the value of UIO_IRQ_NONE -2 to 0. 0 is well defined in the rest
of the kernel as the value to indicate an irq has not been assigned.
Update the calls to request_irq and free_irq to only ignore UIO_IRQ_NONE
and UIO_IRQ_CUSTOM allowing the rest of the kernel's possible irq
numbers to be used.
Signed-off-by: Eric W. Biederman <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Hans J. Koch <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 5dcc9ff..d6188e5 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -108,7 +108,7 @@
/* defines for uio_info->irq */
#define UIO_IRQ_CUSTOM -1
-#define UIO_IRQ_NONE -2
+#define UIO_IRQ_NONE 0
/* defines for uio_mem->memtype */
#define UIO_MEM_NONE 0
