Commit e44a45ae authored by David Brownell's avatar David Brownell Committed by Linus Torvalds

SPI dynamic busid generation bugfix

Fix SPI dynamic bus ID assignment to start at 2^15-1 rather than a negative
number.  Valid bus ids are supposed to be positive, and are (now) stored in
an 's16' value.
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c1a13ff5
...@@ -411,7 +411,7 @@ EXPORT_SYMBOL_GPL(spi_alloc_master); ...@@ -411,7 +411,7 @@ EXPORT_SYMBOL_GPL(spi_alloc_master);
*/ */
int spi_register_master(struct spi_master *master) int spi_register_master(struct spi_master *master)
{ {
static atomic_t dyn_bus_id = ATOMIC_INIT((1<<16) - 1); static atomic_t dyn_bus_id = ATOMIC_INIT((1<<15) - 1);
struct device *dev = master->cdev.dev; struct device *dev = master->cdev.dev;
int status = -ENODEV; int status = -ENODEV;
int dynamic = 0; int dynamic = 0;
......
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