fat: change return values for error cases of fat writing

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>

diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index 38dac5f..ca1b1fb 100644 (file)
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -1147,7 +1147,7 @@ static int do_fat_write (const char *filename, void *buffer,
 
        if (read_bootsectandvi(&bs, &volinfo, &mydata->fatsize)) {
                debug("error: reading boot sector\n");
-               return 0;
+               return 1;
        }
 
        total_sector = bs.total_sect;
@@ -1212,24 +1212,24 @@ static int do_fat_write (const char *filename, void *buffer,
                ret = check_overflow(mydata, start_cluster, size);
                if (ret) {
                        printf("error: %ld overflow\n", size);
-                       return 0;
+                       return -1;
                }
 
                ret = clear_fatent(mydata, start_cluster);
                if (ret < 0) {
                        printf("error: clearing FAT entries\n");
-                       return 0;
+                       return -1;
                }
 
                ret = set_contents(mydata, retdent, buffer, size);
                if (ret < 0) {
                        printf("error: writing contents\n");
-                       return 0;
+                       return -1;
                }
 
                /* Flush fat buffer */
                if (flush_fat_buffer(mydata) < 0)
-                       return 0;
+                       return -1;
 
                if (fragmented_count > 0) {
                        defragment_file(mydata, retdent);
@@ -1241,7 +1241,7 @@ static int do_fat_write (const char *filename, void *buffer,
                            get_dentfromdir_block,
                            mydata->clust_size * SECTOR_SIZE) != 0) {
                        printf("error: wrinting directory entry\n");
-                       return 0;
+                       return -1;
                }
        } else {
                slotptr = (dir_slot *)empty_dentptr;
@@ -1253,13 +1253,13 @@ static int do_fat_write (const char *filename, void *buffer,
                ret = start_cluster = find_empty_cluster(mydata);
                if (ret < 0) {
                        printf("error: finding empty cluster\n");
-                       return 0;
+                       return -1;
                }
 
                ret = check_overflow(mydata, start_cluster, size);
                if (ret) {
                        printf("error: %ld overflow\n", size);
-                       return 0;
+                       return -1;
                }
 
                /* Set attribute as archieve for regular file */
@@ -1269,19 +1269,19 @@ static int do_fat_write (const char *filename, void *buffer,
                ret = set_contents(mydata, empty_dentptr, buffer, size);
                if (ret < 0) {
                        printf("error: writing contents\n");
-                       return 0;
+                       return -1;
                }
 
                /* Flush fat buffer */
                if (flush_fat_buffer(mydata) < 0)
-                       return 0;
+                       return -1;
 
                /* Write directory table to device */
                if (set_cluster(mydata, dir_curclust,
                            get_dentfromdir_block,
                            mydata->clust_size * SECTOR_SIZE) != 0) {
                        printf("error: writing directory entry\n");
-                       return 0;
+                       return -1;
                }
 
                if (fragmented_count > 0) {
@@ -1293,7 +1293,7 @@ static int do_fat_write (const char *filename, void *buffer,
                                    get_dentfromdir_block,
                                    mydata->clust_size * SECTOR_SIZE) != 0) {
                                printf("error: writing directory entry\n");
-                               return 0;
+                               return -1;
                        }
 
                }