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| author | Hans-Christian Egtvedt <hcegtvedt@atmel.com> | 2006-12-07 05:36:17 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 17:39:32 +0100 |
| commit | 4740d387f3cb9e63f48f2488815b38a2c92755c8 (patch) | |
| tree | bc4da709250cfe0b18a5d5dc040e5af3ed57e94d /drivers/spi/spi.c | |
| parent | [PATCH] Remove superfluous lock_super() in extN xattr code (diff) | |
| download | linux-4740d387f3cb9e63f48f2488815b38a2c92755c8.tar.xz linux-4740d387f3cb9e63f48f2488815b38a2c92755c8.zip | |
[PATCH] spi: correct bus_num and buffer bug in spi core
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 <hcegtvedt@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/spi/spi.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1a3c963dc48a..7d215eaa1370 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -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; - - 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); - } + 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); return NULL; } EXPORT_SYMBOL_GPL(spi_busnum_to_master); |