X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=fs%2Ffat%2Ffat.c;h=2a5300d5019f7e8346ee949df4e5bc2450977826;hb=c7a86d1645325697372b404f0b8cadac8a722ce9;hp=29cae8d3914761cdd965b3ec536b807510e39fa0;hpb=12277acda0802e4517ca82842c71aae723f0da16;p=oweals%2Fu-boot.git

diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 29cae8d391..2a5300d501 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -301,10 +301,20 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
 	return 0;
 }
 
-/*
+/**
+ * get_contents() - read from file
+ *
  * Read at most 'maxsize' bytes from 'pos' in the file associated with 'dentptr'
- * into 'buffer'.
- * Update the number of bytes read in *gotsize or return -1 on fatal errors.
+ * into 'buffer'. Update the number of bytes read in *gotsize or return -1 on
+ * fatal errors.
+ *
+ * @mydata:	file system description
+ * @dentprt:	directory entry pointer
+ * @pos:	position from where to read
+ * @buffer:	buffer into which to read
+ * @maxsize:	maximum number of bytes to read
+ * @gotsize:	number of bytes actually read
+ * Return:	-1 on error, otherwise 0
  */
 static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos,
 			__u8 *buffer, loff_t maxsize, loff_t *gotsize)
@@ -335,8 +345,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos,
 		curclust = get_fatent(mydata, curclust);
 		if (CHECK_CLUST(curclust, mydata->fatsize)) {
 			debug("curclust: 0x%x\n", curclust);
-			debug("Invalid FAT entry\n");
-			return 0;
+			printf("Invalid FAT entry\n");
+			return -1;
 		}
 		actsize += bytesperclust;
 	}
@@ -374,8 +384,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos,
 		curclust = get_fatent(mydata, curclust);
 		if (CHECK_CLUST(curclust, mydata->fatsize)) {
 			debug("curclust: 0x%x\n", curclust);
-			debug("Invalid FAT entry\n");
-			return 0;
+			printf("Invalid FAT entry\n");
+			return -1;
 		}
 	}
 
@@ -390,8 +400,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos,
 				goto getit;
 			if (CHECK_CLUST(newclust, mydata->fatsize)) {
 				debug("curclust: 0x%x\n", newclust);
-				debug("Invalid FAT entry\n");
-				return 0;
+				printf("Invalid FAT entry\n");
+				return -1;
 			}
 			endclust = newclust;
 			actsize += bytesperclust;
@@ -418,7 +428,7 @@ getit:
 		if (CHECK_CLUST(curclust, mydata->fatsize)) {
 			debug("curclust: 0x%x\n", curclust);
 			printf("Invalid FAT entry\n");
-			return 0;
+			return -1;
 		}
 		actsize = bytesperclust;
 		endclust = curclust;