Tested in at91sam9x5ek and sama5d3x-ek in mmc fat.
Signed-off-by: Josh Wu <[email protected]>
---
When I debugging this issue, I also find the thread talking about this:
http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/158698
But finally no patch is send for this bug. So I send this and cc all the
people in that thread. Hope it can be merged in 2013.07.
fs/fat/fat_write.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index 5829adf..b7ba8ea 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -561,7 +561,7 @@ set_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer,
unsigned long size)
{
int idx = 0;
- __u32 startsect;
+ __u32 startsect, nr_sectors;
if (clustnum > 0)
startsect = mydata->data_begin +
@@ -571,7 +571,11 @@ set_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer,
debug("clustnum: %d, startsect: %d\n", clustnum, startsect);
- if (disk_write(startsect, size / mydata->sect_size, buffer) < 0) {
+ nr_sectors = size / mydata->sect_size;
+ if (nr_sectors == 0)
+ nr_sectors = 1;
+
+ if (disk_write(startsect, nr_sectors, buffer) < 0) {
debug("Error writing data\n");
return -1;
}
--
1.7.9.5
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