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[PATCH] spi: correct bus_num and buffer bug in spi core

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Correct the following in driver/spi/spi.c in function spi_busnum_to_master:

 * must allow bus_num 0, the if is really not needed.
 * correct the name buffer which is too small for bus_num >= 10000. It

should be 9 bytes big, not 8.

Signed-off-by: Hans-Christian Egtvedt <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hans-Christian Egtvedt 2006-12-06 20:36:17 -08:00 • committed by Linus Torvalds
commit 4740d387f3
1 changed files with 7 additions and 9 deletions
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14
drivers/spi/spi.c
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@ -465,15 +465,13 @@ EXPORT_SYMBOL_GPL(spi_unregister_master);
*/
struct spi_master *spi_busnum_to_master(u16 bus_num)
{
if (bus_num) {
char name[8];
struct kobject *bus;
char name[9];
struct kobject *bus;
snprintf(name, sizeof name, "spi%u", bus_num);
bus = kset_find_obj(&spi_master_class.subsys.kset, name);
if (bus)
return container_of(bus, struct spi_master, cdev.kobj);
}
snprintf(name, sizeof name, "spi%u", bus_num);
bus = kset_find_obj(&spi_master_class.subsys.kset, name);
if (bus)
return container_of(bus, struct spi_master, cdev.kobj);
return NULL;
}
EXPORT_SYMBOL_GPL(spi_busnum_to_master);