Merge branch 'master' of git://git.denx.de/u-boot-i2c

[karo-tx-uboot.git] / fs / fat / fat.c

diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 41ae15eeb976e74e7fab805be15364d52c390563..4a60a2503e7733461a8b75866b236cce77e19c81 100644 (file)
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -85,7 +85,7 @@ int fat_register_device(block_dev_desc_t * dev_desc, int part_no)
 
        /* Otherwise it might be a superfloppy (whole-disk FAT filesystem) */
        if (!cur_dev) {
-               if (part_no != 1) {
+               if (part_no != 0) {
                        printf("** Partition %d not valid on device %d **\n",
                                        part_no, dev_desc->dev);
                        return -1;
@@ -567,15 +567,16 @@ get_vfatname(fsdata *mydata, int curclust, __u8 *cluster,
 }
 
 /* Calculate short name checksum */
-static __u8 mkcksum(const char *str)
+static __u8 mkcksum(const char name[8], const char ext[3])
 {
        int i;
 
        __u8 ret = 0;
 
-       for (i = 0; i < 11; i++) {
-               ret = (((ret & 1) << 7) | ((ret & 0xfe) >> 1)) + str[i];
-       }
+       for (i = 0; i < sizeof(name); i++)
+               ret = (((ret & 1) << 7) | ((ret & 0xfe) >> 1)) + name[i];
+       for (i = 0; i < sizeof(ext); i++)
+               ret = (((ret & 1) << 7) | ((ret & 0xfe) >> 1)) + ext[i];
 
        return ret;
 }
@@ -678,7 +679,8 @@ static dir_entry *get_dentfromdir(fsdata *mydata, int startsect,
                                return NULL;
                        }
 #ifdef CONFIG_SUPPORT_VFAT
-                       if (dols && mkcksum(dentptr->name) == prevcksum) {
+                       __u8 csum = mkcksum(dentptr->name, dentptr->ext);
+                       if (dols && csum == prevcksum) {
                                prevcksum = 0xffff;
                                dentptr++;
                                continue;
@@ -946,13 +948,16 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
 
                for (i = 0; i < DIRENTSPERBLOCK; i++) {
                        char s_name[14], l_name[VFAT_MAXLEN_BYTES];
+                       __u8 csum;
 
                        l_name[0] = '\0';
                        if (dentptr->name[0] == DELETED_FLAG) {
                                dentptr++;
                                continue;
                        }
-                       if ((dentptr->attr & ATTR_VOLUME)) {
+
+                       csum = mkcksum(dentptr->name, dentptr->ext);
+                       if (dentptr->attr & ATTR_VOLUME) {
 #ifdef CONFIG_SUPPORT_VFAT
                                if ((dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
                                    (dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
@@ -1015,8 +1020,7 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
                                goto exit;
                        }
 #ifdef CONFIG_SUPPORT_VFAT
-                       else if (dols == LS_ROOT &&
-                                mkcksum(dentptr->name) == prevcksum) {
+                       else if (dols == LS_ROOT && csum == prevcksum) {
                                prevcksum = 0xffff;
                                dentptr++;
                                continue;