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SPI dynamic busid generation bugfix

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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: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Brownell 2007-06-03 13:50:40 -07:00 committed by Linus Torvalds
parent c1a13ff57a
commit e44a45ae7b
1 changed files with 1 additions and 1 deletions
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drivers/spi/spi.c
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@ -411,7 +411,7 @@ EXPORT_SYMBOL_GPL(spi_alloc_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;
int status = -ENODEV;
int dynamic = 0;