[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>
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@ -465,15 +465,13 @@ EXPORT_SYMBOL_GPL(spi_unregister_master);
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*/
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struct spi_master *spi_busnum_to_master(u16 bus_num)
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{
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if (bus_num) {
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char name[8];
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struct kobject *bus;
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char name[9];
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struct kobject *bus;
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snprintf(name, sizeof name, "spi%u", bus_num);
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bus = kset_find_obj(&spi_master_class.subsys.kset, name);
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if (bus)
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return container_of(bus, struct spi_master, cdev.kobj);
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}
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snprintf(name, sizeof name, "spi%u", bus_num);
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bus = kset_find_obj(&spi_master_class.subsys.kset, name);
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if (bus)
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return container_of(bus, struct spi_master, cdev.kobj);
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return NULL;
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}
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EXPORT_SYMBOL_GPL(spi_busnum_to_master);
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