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fs/fat/fat_write: Factor out duplicate code 

Signed-off-by: Benoît Thébaudeau <benoit@wsystem.com>
utp
Benoît Thébaudeau 2015-09-28 15:45:31 +02:00 committed by Tom Rini
parent 5e1a860e6c
commit e876be4b5c
1 changed files with 22 additions and 50 deletions
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72
fs/fat/fat_write.c
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@ -1028,10 +1028,7 @@ static int do_fat_write(const char *filename, void *buffer, loff_t size,
if (retdent) {
/* Update file size and start_cluster in a directory entry */
retdent->size = cpu_to_le32(size);
start_cluster = FAT2CPU16(retdent->start);
if (mydata->fatsize == 32)
start_cluster |=
(FAT2CPU16(retdent->starthi) << 16);
start_cluster = START(retdent);
ret = check_overflow(mydata, start_cluster, size);
if (ret) {
@ -1044,29 +1041,6 @@ static int do_fat_write(const char *filename, void *buffer, loff_t size,
printf("Error: clearing FAT entries\n");
goto exit;
}
ret = set_contents(mydata, retdent, buffer, size, actwrite);
if (ret < 0) {
printf("Error: writing contents\n");
goto exit;
}
debug("attempt to write 0x%llx bytes\n", *actwrite);
/* Flush fat buffer */
ret = flush_fat_buffer(mydata);
if (ret) {
printf("Error: flush fat buffer\n");
goto exit;
}
/* Write directory table to device */
ret = set_cluster(mydata, dir_curclust,
get_dentfromdir_block,
mydata->clust_size * mydata->sect_size);
if (ret) {
printf("Error: writing directory entry\n");
goto exit;
}
} else {
/* Set short name to set alias checksum field in dir_slot */
set_name(empty_dentptr, filename);
@ -1088,31 +1062,29 @@ static int do_fat_write(const char *filename, void *buffer, loff_t size,
fill_dentry(mydata, empty_dentptr, filename,
start_cluster, size, 0x20);
ret = set_contents(mydata, empty_dentptr, buffer, size,
actwrite);
if (ret < 0) {
printf("Error: writing contents\n");
goto exit;
}
debug("attempt to write 0x%llx bytes\n", *actwrite);
/* Flush fat buffer */
ret = flush_fat_buffer(mydata);
if (ret) {
printf("Error: flush fat buffer\n");
goto exit;
}
/* Write directory table to device */
ret = set_cluster(mydata, dir_curclust,
get_dentfromdir_block,
mydata->clust_size * mydata->sect_size);
if (ret) {
printf("Error: writing directory entry\n");
goto exit;
}
retdent = empty_dentptr;
}
ret = set_contents(mydata, retdent, buffer, size, actwrite);
if (ret < 0) {
printf("Error: writing contents\n");
goto exit;
}
debug("attempt to write 0x%llx bytes\n", *actwrite);
/* Flush fat buffer */
ret = flush_fat_buffer(mydata);
if (ret) {
printf("Error: flush fat buffer\n");
goto exit;
}
/* Write directory table to device */
ret = set_cluster(mydata, dir_curclust, get_dentfromdir_block,
mydata->clust_size * mydata->sect_size);
if (ret)
printf("Error: writing directory entry\n");
exit:
free(mydata->fatbuf);
return ret;