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Diffstat (limited to 'fs/fat/fat_write.c')
-rw-r--r--fs/fat/fat_write.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index 729cf39630..8e4a235d7c 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -794,6 +794,8 @@ set_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer,
newclust = get_fatent(mydata, endclust);
+ if (newclust != endclust + 1)
+ break;
if (IS_LAST_CLUST(newclust, mydata->fatsize))
break;
if (CHECK_CLUST(newclust, mydata->fatsize)) {
@@ -811,7 +813,9 @@ set_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer,
offset = 0;
else
offset = pos - cur_pos;
- wsize = min(cur_pos + actsize, filesize) - pos;
+ wsize = min_t(unsigned long long, actsize, filesize - cur_pos);
+ wsize -= offset;
+
if (get_set_cluster(mydata, curclust, offset,
buffer, wsize, &actsize)) {
printf("Error get-and-setting cluster\n");
@@ -824,8 +828,6 @@ set_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer,
if (filesize <= cur_pos)
break;
- /* CHECK: newclust = get_fatent(mydata, endclust); */
-
if (IS_LAST_CLUST(newclust, mydata->fatsize))
/* no more clusters */
break;