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authorWu, Josh <Josh.wu@atmel.com>2013-07-24 17:55:30 +0800
committerTom Rini <trini@ti.com>2013-09-06 13:09:07 -0400
commit6b8f185faf29db302a20f584cc54253667535f08 (patch)
tree6e8a65e683845756d20603f2bfd66c7f2de80a3b /examples
parent7ea50d52849fe8ffa5b5b74c979b60b1045d6fc9 (diff)
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fs: fat: don't call disk_write with zero sector num
In the set_cluster() function, it will convert the buffer size to sector numbers. Then call disk_write() to write by sector. For remaining buffer, the size is less than a sector, call disk_write() again to write them in one sector. But if the total buffer size is less then one sector, the original code will call disk_write() with zero sector number. It is unnecessary. So this patch fix this. Now it will not call disk_write() if total buffer size is less than one sector. Signed-off-by: Josh Wu <josh.wu@atmel.com>
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